Finding the Third Proportional to 5,718,881 and 8,915,934

Step by Step Solution

1. Step 1: Write the proportion equation
   5,718,881 : 8,915,934 = 8,915,934 : x
2. Step 2: Convert to fraction form
   5,718,881/8,915,934 = 8,915,934/x
3. Step 3: Cross multiply
   5,718,881x = 8,915,934 × 8,915,934
4. Step 4: Simplify right side
   5,718,881x = 79,493,879,092,356
5. Step 5: Solve for x
   x = 79,493,879,092,356/5,718,881
6. Step 6: Final answer
   x = 13,900,250.61