Finding the Third Proportional to 572,619 and 885,831.75

Step by Step Solution

1. Step 1: Write the proportion equation
   572,619 : 885,831.75 = 885,831.75 : x
2. Step 2: Convert to fraction form
   572,619/885,831.75 = 885,831.75/x
3. Step 3: Cross multiply
   572,619x = 885,831.75 × 885,831.75
4. Step 4: Simplify right side
   572,619x = 784,697,889,308.06
5. Step 5: Solve for x
   x = 784,697,889,308.06/572,619
6. Step 6: Final answer
   x = 1,370,366.49