Finding the Third Proportional to 3,655,431 and 7,920,414

Step by Step Solution

1. Step 1: Write the proportion equation
   3,655,431 : 7,920,414 = 7,920,414 : x
2. Step 2: Convert to fraction form
   3,655,431/7,920,414 = 7,920,414/x
3. Step 3: Cross multiply
   3,655,431x = 7,920,414 × 7,920,414
4. Step 4: Simplify right side
   3,655,431x = 62,732,957,931,396
5. Step 5: Solve for x
   x = 62,732,957,931,396/3,655,431
6. Step 6: Final answer
   x = 17,161,576.28