Finding the Third Proportional to 619,411 and 978,974

Step by Step Solution

1. Step 1: Write the proportion equation
   619,411 : 978,974 = 978,974 : x
2. Step 2: Convert to fraction form
   619,411/978,974 = 978,974/x
3. Step 3: Cross multiply
   619,411x = 978,974 × 978,974
4. Step 4: Simplify right side
   619,411x = 958,390,092,676
5. Step 5: Solve for x
   x = 958,390,092,676/619,411
6. Step 6: Final answer
   x = 1,547,260.37