Finding the Third Proportional to 31,092 and 67,700

Step by Step Solution

1. Step 1: Write the proportion equation
   31,092 : 67,700 = 67,700 : x
2. Step 2: Convert to fraction form
   31,092/67,700 = 67,700/x
3. Step 3: Cross multiply
   31,092x = 67,700 × 67,700
4. Step 4: Simplify right side
   31,092x = 4,583,290,000
5. Step 5: Solve for x
   x = 4,583,290,000/31,092
6. Step 6: Final answer
   x = 147,410.59