Finding the Third Proportional to 100,571 and 209,484.50

Step by Step Solution

1. Step 1: Write the proportion equation
   100,571 : 209,484.50 = 209,484.50 : x
2. Step 2: Convert to fraction form
   100,571/209,484.50 = 209,484.50/x
3. Step 3: Cross multiply
   100,571x = 209,484.50 × 209,484.50
4. Step 4: Simplify right side
   100,571x = 43,883,755,740.25
5. Step 5: Solve for x
   x = 43,883,755,740.25/100,571
6. Step 6: Final answer
   x = 436,346.02