Finding the Third Proportional to 21,127.50 and 29,539.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,127.50 : 29,539.50 = 29,539.50 : x
2. Step 2: Convert to fraction form
   21,127.50/29,539.50 = 29,539.50/x
3. Step 3: Cross multiply
   21,127.50x = 29,539.50 × 29,539.50
4. Step 4: Simplify right side
   21,127.50x = 872,582,060.25
5. Step 5: Solve for x
   x = 872,582,060.25/21,127.50
6. Step 6: Final answer
   x = 41,300.77