Finding the Third Proportional to 99,037,501.50 and 217,206,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,037,501.50 : 217,206,892.50 = 217,206,892.50 : x
2. Step 2: Convert to fraction form
   99,037,501.50/217,206,892.50 = 217,206,892.50/x
3. Step 3: Cross multiply
   99,037,501.50x = 217,206,892.50 × 217,206,892.50
4. Step 4: Simplify right side
   99,037,501.50x = 47,178,834,149,506,560
5. Step 5: Solve for x
   x = 47,178,834,149,506,560/99,037,501.50
6. Step 6: Final answer
   x = 476,373,428.60