Finding the Third Proportional to 83,499,666 and 172,727,085

Step by Step Solution

1. Step 1: Write the proportion equation
   83,499,666 : 172,727,085 = 172,727,085 : x
2. Step 2: Convert to fraction form
   83,499,666/172,727,085 = 172,727,085/x
3. Step 3: Cross multiply
   83,499,666x = 172,727,085 × 172,727,085
4. Step 4: Simplify right side
   83,499,666x = 29,834,645,892,597,224
5. Step 5: Solve for x
   x = 29,834,645,892,597,224/83,499,666
6. Step 6: Final answer
   x = 357,302,577.62