Finding the Third Proportional to 86,384,566.50 and 122,231,518.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,384,566.50 : 122,231,518.50 = 122,231,518.50 : x
2. Step 2: Convert to fraction form
   86,384,566.50/122,231,518.50 = 122,231,518.50/x
3. Step 3: Cross multiply
   86,384,566.50x = 122,231,518.50 × 122,231,518.50
4. Step 4: Simplify right side
   86,384,566.50x = 14,940,544,114,815,842
5. Step 5: Solve for x
   x = 14,940,544,114,815,842/86,384,566.50
6. Step 6: Final answer
   x = 172,953,858.78