Finding the Third Proportional to 812,798 and 1,786,484

Step by Step Solution

1. Step 1: Write the proportion equation
   812,798 : 1,786,484 = 1,786,484 : x
2. Step 2: Convert to fraction form
   812,798/1,786,484 = 1,786,484/x
3. Step 3: Cross multiply
   812,798x = 1,786,484 × 1,786,484
4. Step 4: Simplify right side
   812,798x = 3,191,525,082,256
5. Step 5: Solve for x
   x = 3,191,525,082,256/812,798
6. Step 6: Final answer
   x = 3,926,590.72