Finding the Third Proportional to 5,715,117 and 8,146,980

Step by Step Solution

1. Step 1: Write the proportion equation
   5,715,117 : 8,146,980 = 8,146,980 : x
2. Step 2: Convert to fraction form
   5,715,117/8,146,980 = 8,146,980/x
3. Step 3: Cross multiply
   5,715,117x = 8,146,980 × 8,146,980
4. Step 4: Simplify right side
   5,715,117x = 66,373,283,120,400
5. Step 5: Solve for x
   x = 66,373,283,120,400/5,715,117
6. Step 6: Final answer
   x = 11,613,635.05