According to the text, given the initial cost of building the auditorium and the equivalent cost in 2021, what is the value of 1892 dollars in 2021?

The auditorium opened as the Union Gospel Tabernacle in 1892. Its construction was spearheaded by Thomas Ryman (1843–1904), a Nashville businessman who owned several saloons and a fleet of riverboats. Ryman conceived the idea of the auditorium as a tabernacle for the influential revivalist Samuel Porter Jones. He had attended one of Jones' 1885 tent revivals with the intent to heckle, but was instead converted into a devout Christian who pledged to build the tabernacle so the people of Nashville could attend large-scale revivals indoors. It took seven years to complete and cost US$100,000 (equivalent to $3,015,926 in 2021). Jones held his first revival at the site on May 25, 1890, when only the building's foundation and six-foot (1.8 m) walls had been completed.

30.15926, since 3,015,926/100,000 = 30.15926