Finding the Third Proportional to 13,315,724 and 28,653,872

Step by Step Solution

1. Step 1: Write the proportion equation
   13,315,724 : 28,653,872 = 28,653,872 : x
2. Step 2: Convert to fraction form
   13,315,724/28,653,872 = 28,653,872/x
3. Step 3: Cross multiply
   13,315,724x = 28,653,872 × 28,653,872
4. Step 4: Simplify right side
   13,315,724x = 821,044,380,592,384
5. Step 5: Solve for x
   x = 821,044,380,592,384/13,315,724
6. Step 6: Final answer
   x = 61,659,762.59