Finding the Third Proportional to 4,073,554 and 8,478,528

Step by Step Solution

1. Step 1: Write the proportion equation
   4,073,554 : 8,478,528 = 8,478,528 : x
2. Step 2: Convert to fraction form
   4,073,554/8,478,528 = 8,478,528/x
3. Step 3: Cross multiply
   4,073,554x = 8,478,528 × 8,478,528
4. Step 4: Simplify right side
   4,073,554x = 71,885,437,046,784
5. Step 5: Solve for x
   x = 71,885,437,046,784/4,073,554
6. Step 6: Final answer
   x = 17,646,859.98