Finding the Third Proportional to 108,742.50 and 153,135

Step by Step Solution

1. Step 1: Write the proportion equation
   108,742.50 : 153,135 = 153,135 : x
2. Step 2: Convert to fraction form
   108,742.50/153,135 = 153,135/x
3. Step 3: Cross multiply
   108,742.50x = 153,135 × 153,135
4. Step 4: Simplify right side
   108,742.50x = 23,450,328,225
5. Step 5: Solve for x
   x = 23,450,328,225/108,742.50
6. Step 6: Final answer
   x = 215,650.07