Finding the Third Proportional to 28,280 and 60,931

Step by Step Solution

1. Step 1: Write the proportion equation
   28,280 : 60,931 = 60,931 : x
2. Step 2: Convert to fraction form
   28,280/60,931 = 60,931/x
3. Step 3: Cross multiply
   28,280x = 60,931 × 60,931
4. Step 4: Simplify right side
   28,280x = 3,712,586,761
5. Step 5: Solve for x
   x = 3,712,586,761/28,280
6. Step 6: Final answer
   x = 131,279.59