Finding the Third Proportional to 438,969 and 961,821.50

Step by Step Solution

1. Step 1: Write the proportion equation
   438,969 : 961,821.50 = 961,821.50 : x
2. Step 2: Convert to fraction form
   438,969/961,821.50 = 961,821.50/x
3. Step 3: Cross multiply
   438,969x = 961,821.50 × 961,821.50
4. Step 4: Simplify right side
   438,969x = 925,100,597,862.25
5. Step 5: Solve for x
   x = 925,100,597,862.25/438,969
6. Step 6: Final answer
   x = 2,107,439.47