Finding the Third Proportional to 31,090 and 67,092

Step by Step Solution

1. Step 1: Write the proportion equation
   31,090 : 67,092 = 67,092 : x
2. Step 2: Convert to fraction form
   31,090/67,092 = 67,092/x
3. Step 3: Cross multiply
   31,090x = 67,092 × 67,092
4. Step 4: Simplify right side
   31,090x = 4,501,336,464
5. Step 5: Solve for x
   x = 4,501,336,464/31,090
6. Step 6: Final answer
   x = 144,784.06