Finding the Third Proportional to 155,932.50 and 342,315

Step by Step Solution

1. Step 1: Write the proportion equation
   155,932.50 : 342,315 = 342,315 : x
2. Step 2: Convert to fraction form
   155,932.50/342,315 = 342,315/x
3. Step 3: Cross multiply
   155,932.50x = 342,315 × 342,315
4. Step 4: Simplify right side
   155,932.50x = 117,179,559,225
5. Step 5: Solve for x
   x = 117,179,559,225/155,932.50
6. Step 6: Final answer
   x = 751,476.18