Finding the Third Proportional to 5,419,426 and 8,316,531

Step by Step Solution

1. Step 1: Write the proportion equation
   5,419,426 : 8,316,531 = 8,316,531 : x
2. Step 2: Convert to fraction form
   5,419,426/8,316,531 = 8,316,531/x
3. Step 3: Cross multiply
   5,419,426x = 8,316,531 × 8,316,531
4. Step 4: Simplify right side
   5,419,426x = 69,164,687,873,961
5. Step 5: Solve for x
   x = 69,164,687,873,961/5,419,426
6. Step 6: Final answer
   x = 12,762,364.11