Finding the Third Proportional to 5,867,860 and 8,976,138

Step by Step Solution

1. Step 1: Write the proportion equation
   5,867,860 : 8,976,138 = 8,976,138 : x
2. Step 2: Convert to fraction form
   5,867,860/8,976,138 = 8,976,138/x
3. Step 3: Cross multiply
   5,867,860x = 8,976,138 × 8,976,138
4. Step 4: Simplify right side
   5,867,860x = 80,571,053,395,044
5. Step 5: Solve for x
   x = 80,571,053,395,044/5,867,860
6. Step 6: Final answer
   x = 13,730,909.29