Finding the Third Proportional to 71,880.75 and 156,814.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,880.75 : 156,814.50 = 156,814.50 : x
2. Step 2: Convert to fraction form
   71,880.75/156,814.50 = 156,814.50/x
3. Step 3: Cross multiply
   71,880.75x = 156,814.50 × 156,814.50
4. Step 4: Simplify right side
   71,880.75x = 24,590,787,410.25
5. Step 5: Solve for x
   x = 24,590,787,410.25/71,880.75
6. Step 6: Final answer
   x = 342,105.33