Finding the Third Proportional to 812,758 and 1,779,670

Step by Step Solution

1. Step 1: Write the proportion equation
   812,758 : 1,779,670 = 1,779,670 : x
2. Step 2: Convert to fraction form
   812,758/1,779,670 = 1,779,670/x
3. Step 3: Cross multiply
   812,758x = 1,779,670 × 1,779,670
4. Step 4: Simplify right side
   812,758x = 3,167,225,308,900
5. Step 5: Solve for x
   x = 3,167,225,308,900/812,758
6. Step 6: Final answer
   x = 3,896,886.05