Finding the Third Proportional to 31,376,064 and 68,308,080

Step by Step Solution

1. Step 1: Write the proportion equation
   31,376,064 : 68,308,080 = 68,308,080 : x
2. Step 2: Convert to fraction form
   31,376,064/68,308,080 = 68,308,080/x
3. Step 3: Cross multiply
   31,376,064x = 68,308,080 × 68,308,080
4. Step 4: Simplify right side
   31,376,064x = 4,665,993,793,286,400
5. Step 5: Solve for x
   x = 4,665,993,793,286,400/31,376,064
6. Step 6: Final answer
   x = 148,711,890.48