Finding the Third Proportional to 624,789 and 913,501.50

Step by Step Solution

1. Step 1: Write the proportion equation
   624,789 : 913,501.50 = 913,501.50 : x
2. Step 2: Convert to fraction form
   624,789/913,501.50 = 913,501.50/x
3. Step 3: Cross multiply
   624,789x = 913,501.50 × 913,501.50
4. Step 4: Simplify right side
   624,789x = 834,484,990,502.25
5. Step 5: Solve for x
   x = 834,484,990,502.25/624,789
6. Step 6: Final answer
   x = 1,335,626.89