Finding the Third Proportional to 17,974,984 and 39,312,872

Step by Step Solution

1. Step 1: Write the proportion equation
   17,974,984 : 39,312,872 = 39,312,872 : x
2. Step 2: Convert to fraction form
   17,974,984/39,312,872 = 39,312,872/x
3. Step 3: Cross multiply
   17,974,984x = 39,312,872 × 39,312,872
4. Step 4: Simplify right side
   17,974,984x = 1,545,501,904,888,384
5. Step 5: Solve for x
   x = 1,545,501,904,888,384/17,974,984
6. Step 6: Final answer
   x = 85,980,711.02