Finding the Third Proportional to 30,280.50 and 71,813.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,280.50 : 71,813.25 = 71,813.25 : x
2. Step 2: Convert to fraction form
   30,280.50/71,813.25 = 71,813.25/x
3. Step 3: Cross multiply
   30,280.50x = 71,813.25 × 71,813.25
4. Step 4: Simplify right side
   30,280.50x = 5,157,142,875.56
5. Step 5: Solve for x
   x = 5,157,142,875.56/30,280.50
6. Step 6: Final answer
   x = 170,312.34