Finding the Third Proportional to 817,122 and 1,260,144

Step by Step Solution

1. Step 1: Write the proportion equation
   817,122 : 1,260,144 = 1,260,144 : x
2. Step 2: Convert to fraction form
   817,122/1,260,144 = 1,260,144/x
3. Step 3: Cross multiply
   817,122x = 1,260,144 × 1,260,144
4. Step 4: Simplify right side
   817,122x = 1,587,962,900,736
5. Step 5: Solve for x
   x = 1,587,962,900,736/817,122
6. Step 6: Final answer
   x = 1,943,360.85