Finding the Third Proportional to 367,090 and 812,790

Step by Step Solution

1. Step 1: Write the proportion equation
   367,090 : 812,790 = 812,790 : x
2. Step 2: Convert to fraction form
   367,090/812,790 = 812,790/x
3. Step 3: Cross multiply
   367,090x = 812,790 × 812,790
4. Step 4: Simplify right side
   367,090x = 660,627,584,100
5. Step 5: Solve for x
   x = 660,627,584,100/367,090
6. Step 6: Final answer
   x = 1,799,633.83