Finding the Third Proportional to 371,892 and 812,904

Step by Step Solution

1. Step 1: Write the proportion equation
   371,892 : 812,904 = 812,904 : x
2. Step 2: Convert to fraction form
   371,892/812,904 = 812,904/x
3. Step 3: Cross multiply
   371,892x = 812,904 × 812,904
4. Step 4: Simplify right side
   371,892x = 660,812,913,216
5. Step 5: Solve for x
   x = 660,812,913,216/371,892
6. Step 6: Final answer
   x = 1,776,894.67