Finding the Third Proportional to 619,403 and 978,962

Step by Step Solution

1. Step 1: Write the proportion equation
   619,403 : 978,962 = 978,962 : x
2. Step 2: Convert to fraction form
   619,403/978,962 = 978,962/x
3. Step 3: Cross multiply
   619,403x = 978,962 × 978,962
4. Step 4: Simplify right side
   619,403x = 958,366,597,444
5. Step 5: Solve for x
   x = 958,366,597,444/619,403
6. Step 6: Final answer
   x = 1,547,242.42