Finding the Third Proportional to 12,613,516 and 19,487,670

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613,516 : 19,487,670 = 19,487,670 : x
2. Step 2: Convert to fraction form
   12,613,516/19,487,670 = 19,487,670/x
3. Step 3: Cross multiply
   12,613,516x = 19,487,670 × 19,487,670
4. Step 4: Simplify right side
   12,613,516x = 379,769,282,028,900
5. Step 5: Solve for x
   x = 379,769,282,028,900/12,613,516
6. Step 6: Final answer
   x = 30,108,122.27