Finding the Third Proportional to 120,535.50 and 230,131.50

Step by Step Solution

1. Step 1: Write the proportion equation
   120,535.50 : 230,131.50 = 230,131.50 : x
2. Step 2: Convert to fraction form
   120,535.50/230,131.50 = 230,131.50/x
3. Step 3: Cross multiply
   120,535.50x = 230,131.50 × 230,131.50
4. Step 4: Simplify right side
   120,535.50x = 52,960,507,292.25
5. Step 5: Solve for x
   x = 52,960,507,292.25/120,535.50
6. Step 6: Final answer
   x = 439,376.84