Finding the Third Proportional to 141,901.50 and 310,446

Step by Step Solution

1. Step 1: Write the proportion equation
   141,901.50 : 310,446 = 310,446 : x
2. Step 2: Convert to fraction form
   141,901.50/310,446 = 310,446/x
3. Step 3: Cross multiply
   141,901.50x = 310,446 × 310,446
4. Step 4: Simplify right side
   141,901.50x = 96,376,718,916
5. Step 5: Solve for x
   x = 96,376,718,916/141,901.50
6. Step 6: Final answer
   x = 679,180.41