Finding the Third Proportional to 12,596,517 and 18,891,499.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,596,517 : 18,891,499.50 = 18,891,499.50 : x
2. Step 2: Convert to fraction form
   12,596,517/18,891,499.50 = 18,891,499.50/x
3. Step 3: Cross multiply
   12,596,517x = 18,891,499.50 × 18,891,499.50
4. Step 4: Simplify right side
   12,596,517x = 356,888,753,358,500.25
5. Step 5: Solve for x
   x = 356,888,753,358,500.25/12,596,517
6. Step 6: Final answer
   x = 28,332,336.10