Finding the Third Proportional to 688,054.50 and 1,062,760.50

Step by Step Solution

1. Step 1: Write the proportion equation
   688,054.50 : 1,062,760.50 = 1,062,760.50 : x
2. Step 2: Convert to fraction form
   688,054.50/1,062,760.50 = 1,062,760.50/x
3. Step 3: Cross multiply
   688,054.50x = 1,062,760.50 × 1,062,760.50
4. Step 4: Simplify right side
   688,054.50x = 1,129,459,880,360.25
5. Step 5: Solve for x
   x = 1,129,459,880,360.25/688,054.50
6. Step 6: Final answer
   x = 1,641,526.77