Finding the Third Proportional to 681,663.50 and 1,036,659

Step by Step Solution

1. Step 1: Write the proportion equation
   681,663.50 : 1,036,659 = 1,036,659 : x
2. Step 2: Convert to fraction form
   681,663.50/1,036,659 = 1,036,659/x
3. Step 3: Cross multiply
   681,663.50x = 1,036,659 × 1,036,659
4. Step 4: Simplify right side
   681,663.50x = 1,074,661,882,281
5. Step 5: Solve for x
   x = 1,074,661,882,281/681,663.50
6. Step 6: Final answer
   x = 1,576,528.42