Finding the Third Proportional to 8,647,582.50 and 12,711,127.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,647,582.50 : 12,711,127.50 = 12,711,127.50 : x
2. Step 2: Convert to fraction form
   8,647,582.50/12,711,127.50 = 12,711,127.50/x
3. Step 3: Cross multiply
   8,647,582.50x = 12,711,127.50 × 12,711,127.50
4. Step 4: Simplify right side
   8,647,582.50x = 161,572,762,321,256.25
5. Step 5: Solve for x
   x = 161,572,762,321,256.25/8,647,582.50
6. Step 6: Final answer
   x = 18,684,153.90