Finding the Third Proportional to 984,390 and 1,407,654

Step by Step Solution

1. Step 1: Write the proportion equation
   984,390 : 1,407,654 = 1,407,654 : x
2. Step 2: Convert to fraction form
   984,390/1,407,654 = 1,407,654/x
3. Step 3: Cross multiply
   984,390x = 1,407,654 × 1,407,654
4. Step 4: Simplify right side
   984,390x = 1,981,489,783,716
5. Step 5: Solve for x
   x = 1,981,489,783,716/984,390
6. Step 6: Final answer
   x = 2,012,911.33