Finding the Third Proportional to 209,870 and 449,682.50

Step by Step Solution

1. Step 1: Write the proportion equation
   209,870 : 449,682.50 = 449,682.50 : x
2. Step 2: Convert to fraction form
   209,870/449,682.50 = 449,682.50/x
3. Step 3: Cross multiply
   209,870x = 449,682.50 × 449,682.50
4. Step 4: Simplify right side
   209,870x = 202,214,350,806.25
5. Step 5: Solve for x
   x = 202,214,350,806.25/209,870
6. Step 6: Final answer
   x = 963,521.95