Finding the Third Proportional to 354,981 and 772,158

Step by Step Solution

1. Step 1: Write the proportion equation
   354,981 : 772,158 = 772,158 : x
2. Step 2: Convert to fraction form
   354,981/772,158 = 772,158/x
3. Step 3: Cross multiply
   354,981x = 772,158 × 772,158
4. Step 4: Simplify right side
   354,981x = 596,227,976,964
5. Step 5: Solve for x
   x = 596,227,976,964/354,981
6. Step 6: Final answer
   x = 1,679,605.32