Finding the Third Proportional to 136,138.50 and 281,025

Step by Step Solution

1. Step 1: Write the proportion equation
   136,138.50 : 281,025 = 281,025 : x
2. Step 2: Convert to fraction form
   136,138.50/281,025 = 281,025/x
3. Step 3: Cross multiply
   136,138.50x = 281,025 × 281,025
4. Step 4: Simplify right side
   136,138.50x = 78,975,050,625
5. Step 5: Solve for x
   x = 78,975,050,625/136,138.50
6. Step 6: Final answer
   x = 580,108.13