Finding the Third Proportional to 9,389,376 and 19,787,499

Step by Step Solution

1. Step 1: Write the proportion equation
   9,389,376 : 19,787,499 = 19,787,499 : x
2. Step 2: Convert to fraction form
   9,389,376/19,787,499 = 19,787,499/x
3. Step 3: Cross multiply
   9,389,376x = 19,787,499 × 19,787,499
4. Step 4: Simplify right side
   9,389,376x = 391,545,116,675,001
5. Step 5: Solve for x
   x = 391,545,116,675,001/9,389,376
6. Step 6: Final answer
   x = 41,700,866.67