Finding the Third Proportional to 129,781.50 and 281,592

Step by Step Solution

1. Step 1: Write the proportion equation
   129,781.50 : 281,592 = 281,592 : x
2. Step 2: Convert to fraction form
   129,781.50/281,592 = 281,592/x
3. Step 3: Cross multiply
   129,781.50x = 281,592 × 281,592
4. Step 4: Simplify right side
   129,781.50x = 79,294,054,464
5. Step 5: Solve for x
   x = 79,294,054,464/129,781.50
6. Step 6: Final answer
   x = 610,981.18