Finding the Third Proportional to 152,194.50 and 216,330

Step by Step Solution

1. Step 1: Write the proportion equation
   152,194.50 : 216,330 = 216,330 : x
2. Step 2: Convert to fraction form
   152,194.50/216,330 = 216,330/x
3. Step 3: Cross multiply
   152,194.50x = 216,330 × 216,330
4. Step 4: Simplify right side
   152,194.50x = 46,798,668,900
5. Step 5: Solve for x
   x = 46,798,668,900/152,194.50
6. Step 6: Final answer
   x = 307,492.51