Finding the Third Proportional to 557,761 and 837,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   557,761 : 837,913.50 = 837,913.50 : x
2. Step 2: Convert to fraction form
   557,761/837,913.50 = 837,913.50/x
3. Step 3: Cross multiply
   557,761x = 837,913.50 × 837,913.50
4. Step 4: Simplify right side
   557,761x = 702,099,033,482.25
5. Step 5: Solve for x
   x = 702,099,033,482.25/557,761
6. Step 6: Final answer
   x = 1,258,781.15