Finding the Third Proportional to 14,200 and 31,160

Step by Step Solution

1. Step 1: Write the proportion equation
   14,200 : 31,160 = 31,160 : x
2. Step 2: Convert to fraction form
   14,200/31,160 = 31,160/x
3. Step 3: Cross multiply
   14,200x = 31,160 × 31,160
4. Step 4: Simplify right side
   14,200x = 970,945,600
5. Step 5: Solve for x
   x = 970,945,600/14,200
6. Step 6: Final answer
   x = 68,376.45