Finding the Third Proportional to 427,802.50 and 910,661

Step by Step Solution

1. Step 1: Write the proportion equation
   427,802.50 : 910,661 = 910,661 : x
2. Step 2: Convert to fraction form
   427,802.50/910,661 = 910,661/x
3. Step 3: Cross multiply
   427,802.50x = 910,661 × 910,661
4. Step 4: Simplify right side
   427,802.50x = 829,303,456,921
5. Step 5: Solve for x
   x = 829,303,456,921/427,802.50
6. Step 6: Final answer
   x = 1,938,519.43