Finding the Third Proportional to 284,691.50 and 418,470

Step by Step Solution

1. Step 1: Write the proportion equation
   284,691.50 : 418,470 = 418,470 : x
2. Step 2: Convert to fraction form
   284,691.50/418,470 = 418,470/x
3. Step 3: Cross multiply
   284,691.50x = 418,470 × 418,470
4. Step 4: Simplify right side
   284,691.50x = 175,117,140,900
5. Step 5: Solve for x
   x = 175,117,140,900/284,691.50
6. Step 6: Final answer
   x = 615,111.94