Finding the Third Proportional to 553,707 and 848,839.50

Step by Step Solution

1. Step 1: Write the proportion equation
   553,707 : 848,839.50 = 848,839.50 : x
2. Step 2: Convert to fraction form
   553,707/848,839.50 = 848,839.50/x
3. Step 3: Cross multiply
   553,707x = 848,839.50 × 848,839.50
4. Step 4: Simplify right side
   553,707x = 720,528,496,760.25
5. Step 5: Solve for x
   x = 720,528,496,760.25/553,707
6. Step 6: Final answer
   x = 1,301,281.18