Finding the Third Proportional to 100,531.50 and 209,332

Step by Step Solution

1. Step 1: Write the proportion equation
   100,531.50 : 209,332 = 209,332 : x
2. Step 2: Convert to fraction form
   100,531.50/209,332 = 209,332/x
3. Step 3: Cross multiply
   100,531.50x = 209,332 × 209,332
4. Step 4: Simplify right side
   100,531.50x = 43,819,886,224
5. Step 5: Solve for x
   x = 43,819,886,224/100,531.50
6. Step 6: Final answer
   x = 435,882.15