Finding the Third Proportional to 371,886 and 812,892

Step by Step Solution

1. Step 1: Write the proportion equation
   371,886 : 812,892 = 812,892 : x
2. Step 2: Convert to fraction form
   371,886/812,892 = 812,892/x
3. Step 3: Cross multiply
   371,886x = 812,892 × 812,892
4. Step 4: Simplify right side
   371,886x = 660,793,403,664
5. Step 5: Solve for x
   x = 660,793,403,664/371,886
6. Step 6: Final answer
   x = 1,776,870.88