Finding the Third Proportional to 684,396 and 1,020,738

Step by Step Solution

1. Step 1: Write the proportion equation
   684,396 : 1,020,738 = 1,020,738 : x
2. Step 2: Convert to fraction form
   684,396/1,020,738 = 1,020,738/x
3. Step 3: Cross multiply
   684,396x = 1,020,738 × 1,020,738
4. Step 4: Simplify right side
   684,396x = 1,041,906,064,644
5. Step 5: Solve for x
   x = 1,041,906,064,644/684,396
6. Step 6: Final answer
   x = 1,522,373.11