Finding the Third Proportional to 87,428.75 and 156,868

Step by Step Solution

1. Step 1: Write the proportion equation
   87,428.75 : 156,868 = 156,868 : x
2. Step 2: Convert to fraction form
   87,428.75/156,868 = 156,868/x
3. Step 3: Cross multiply
   87,428.75x = 156,868 × 156,868
4. Step 4: Simplify right side
   87,428.75x = 24,607,569,424
5. Step 5: Solve for x
   x = 24,607,569,424/87,428.75
6. Step 6: Final answer
   x = 281,458.55