Finding the Third Proportional to 90,781.50 and 199,482

Step by Step Solution

1. Step 1: Write the proportion equation
   90,781.50 : 199,482 = 199,482 : x
2. Step 2: Convert to fraction form
   90,781.50/199,482 = 199,482/x
3. Step 3: Cross multiply
   90,781.50x = 199,482 × 199,482
4. Step 4: Simplify right side
   90,781.50x = 39,793,068,324
5. Step 5: Solve for x
   x = 39,793,068,324/90,781.50
6. Step 6: Final answer
   x = 438,338.96