Finding the Third Proportional to 920,128.50 and 1,396,746

Step by Step Solution

1. Step 1: Write the proportion equation
   920,128.50 : 1,396,746 = 1,396,746 : x
2. Step 2: Convert to fraction form
   920,128.50/1,396,746 = 1,396,746/x
3. Step 3: Cross multiply
   920,128.50x = 1,396,746 × 1,396,746
4. Step 4: Simplify right side
   920,128.50x = 1,950,899,388,516
5. Step 5: Solve for x
   x = 1,950,899,388,516/920,128.50
6. Step 6: Final answer
   x = 2,120,246.67