Finding the Third Proportional to 121,828.25 and 187,500

Step by Step Solution

1. Step 1: Write the proportion equation
   121,828.25 : 187,500 = 187,500 : x
2. Step 2: Convert to fraction form
   121,828.25/187,500 = 187,500/x
3. Step 3: Cross multiply
   121,828.25x = 187,500 × 187,500
4. Step 4: Simplify right side
   121,828.25x = 35,156,250,000
5. Step 5: Solve for x
   x = 35,156,250,000/121,828.25
6. Step 6: Final answer
   x = 288,572.23