Finding the Third Proportional to 16,490,844 and 25,678,548

Step by Step Solution

1. Step 1: Write the proportion equation
   16,490,844 : 25,678,548 = 25,678,548 : x
2. Step 2: Convert to fraction form
   16,490,844/25,678,548 = 25,678,548/x
3. Step 3: Cross multiply
   16,490,844x = 25,678,548 × 25,678,548
4. Step 4: Simplify right side
   16,490,844x = 659,387,827,388,304
5. Step 5: Solve for x
   x = 659,387,827,388,304/16,490,844
6. Step 6: Final answer
   x = 39,985,086.72