Finding the Third Proportional to 52,499,866 and 82,169,299

Step by Step Solution

1. Step 1: Write the proportion equation
   52,499,866 : 82,169,299 = 82,169,299 : x
2. Step 2: Convert to fraction form
   52,499,866/82,169,299 = 82,169,299/x
3. Step 3: Cross multiply
   52,499,866x = 82,169,299 × 82,169,299
4. Step 4: Simplify right side
   52,499,866x = 6,751,793,698,151,401
5. Step 5: Solve for x
   x = 6,751,793,698,151,401/52,499,866
6. Step 6: Final answer
   x = 128,605,922.50