Finding the Third Proportional to 423,538.50 and 825,798

Step by Step Solution

1. Step 1: Write the proportion equation
   423,538.50 : 825,798 = 825,798 : x
2. Step 2: Convert to fraction form
   423,538.50/825,798 = 825,798/x
3. Step 3: Cross multiply
   423,538.50x = 825,798 × 825,798
4. Step 4: Simplify right side
   423,538.50x = 681,942,336,804
5. Step 5: Solve for x
   x = 681,942,336,804/423,538.50
6. Step 6: Final answer
   x = 1,610,107.08