Finding the Third Proportional to 140,292 and 209,884.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,292 : 209,884.50 = 209,884.50 : x
2. Step 2: Convert to fraction form
   140,292/209,884.50 = 209,884.50/x
3. Step 3: Cross multiply
   140,292x = 209,884.50 × 209,884.50
4. Step 4: Simplify right side
   140,292x = 44,051,503,340.25
5. Step 5: Solve for x
   x = 44,051,503,340.25/140,292
6. Step 6: Final answer
   x = 313,998.68