Finding the Third Proportional to 99,011,815.59 and 215,062,684.88

Step by Step Solution

1. Step 1: Write the proportion equation
   99,011,815.59 : 215,062,684.88 = 215,062,684.88 : x
2. Step 2: Convert to fraction form
   99,011,815.59/215,062,684.88 = 215,062,684.88/x
3. Step 3: Cross multiply
   99,011,815.59x = 215,062,684.88 × 215,062,684.88
4. Step 4: Simplify right side
   99,011,815.59x = 46,251,958,425,643,552
5. Step 5: Solve for x
   x = 46,251,958,425,643,552/99,011,815.59
6. Step 6: Final answer
   x = 467,135,746.86