Finding the Third Proportional to 31,253 and 69,418

Step by Step Solution

1. Step 1: Write the proportion equation
   31,253 : 69,418 = 69,418 : x
2. Step 2: Convert to fraction form
   31,253/69,418 = 69,418/x
3. Step 3: Cross multiply
   31,253x = 69,418 × 69,418
4. Step 4: Simplify right side
   31,253x = 4,818,858,724
5. Step 5: Solve for x
   x = 4,818,858,724/31,253
6. Step 6: Final answer
   x = 154,188.68