Finding the Third Proportional to 209,696 and 448,779.50

Step by Step Solution

1. Step 1: Write the proportion equation
   209,696 : 448,779.50 = 448,779.50 : x
2. Step 2: Convert to fraction form
   209,696/448,779.50 = 448,779.50/x
3. Step 3: Cross multiply
   209,696x = 448,779.50 × 448,779.50
4. Step 4: Simplify right side
   209,696x = 201,403,039,620.25
5. Step 5: Solve for x
   x = 201,403,039,620.25/209,696
6. Step 6: Final answer
   x = 960,452.46