Finding the Third Proportional to 6,620,842.50 and 10,123,720.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,620,842.50 : 10,123,720.50 = 10,123,720.50 : x
2. Step 2: Convert to fraction form
   6,620,842.50/10,123,720.50 = 10,123,720.50/x
3. Step 3: Cross multiply
   6,620,842.50x = 10,123,720.50 × 10,123,720.50
4. Step 4: Simplify right side
   6,620,842.50x = 102,489,716,762,120.25
5. Step 5: Solve for x
   x = 102,489,716,762,120.25/6,620,842.50
6. Step 6: Final answer
   x = 15,479,860.27