Finding the Third Proportional to 131,313 and 209,041.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,313 : 209,041.50 = 209,041.50 : x
2. Step 2: Convert to fraction form
   131,313/209,041.50 = 209,041.50/x
3. Step 3: Cross multiply
   131,313x = 209,041.50 × 209,041.50
4. Step 4: Simplify right side
   131,313x = 43,698,348,722.25
5. Step 5: Solve for x
   x = 43,698,348,722.25/131,313
6. Step 6: Final answer
   x = 332,780.07