Finding the Third Proportional to 916,238.50 and 1,398,050.50

Step by Step Solution

1. Step 1: Write the proportion equation
   916,238.50 : 1,398,050.50 = 1,398,050.50 : x
2. Step 2: Convert to fraction form
   916,238.50/1,398,050.50 = 1,398,050.50/x
3. Step 3: Cross multiply
   916,238.50x = 1,398,050.50 × 1,398,050.50
4. Step 4: Simplify right side
   916,238.50x = 1,954,545,200,550.25
5. Step 5: Solve for x
   x = 1,954,545,200,550.25/916,238.50
6. Step 6: Final answer
   x = 2,133,227.54