Finding the Third Proportional to 72,613.50 and 157,289.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72,613.50 : 157,289.25 = 157,289.25 : x
2. Step 2: Convert to fraction form
   72,613.50/157,289.25 = 157,289.25/x
3. Step 3: Cross multiply
   72,613.50x = 157,289.25 × 157,289.25
4. Step 4: Simplify right side
   72,613.50x = 24,739,908,165.56
5. Step 5: Solve for x
   x = 24,739,908,165.56/72,613.50
6. Step 6: Final answer
   x = 340,706.73