Finding the Third Proportional to 99,645,919.03 and 217,423,981.69

Step by Step Solution

1. Step 1: Write the proportion equation
   99,645,919.03 : 217,423,981.69 = 217,423,981.69 : x
2. Step 2: Convert to fraction form
   99,645,919.03/217,423,981.69 = 217,423,981.69/x
3. Step 3: Cross multiply
   99,645,919.03x = 217,423,981.69 × 217,423,981.69
4. Step 4: Simplify right side
   99,645,919.03x = 47,273,187,812,846,336
5. Step 5: Solve for x
   x = 47,273,187,812,846,336/99,645,919.03
6. Step 6: Final answer
   x = 474,411,679.60