Finding the Third Proportional to 141,091.31 and 301,318.31

Step by Step Solution

1. Step 1: Write the proportion equation
   141,091.31 : 301,318.31 = 301,318.31 : x
2. Step 2: Convert to fraction form
   141,091.31/301,318.31 = 301,318.31/x
3. Step 3: Cross multiply
   141,091.31x = 301,318.31 × 301,318.31
4. Step 4: Simplify right side
   141,091.31x = 90,792,725,447.85
5. Step 5: Solve for x
   x = 90,792,725,447.85/141,091.31
6. Step 6: Final answer
   x = 643,503.30