Finding the Third Proportional to 578,983.50 and 1,275,763.50

Step by Step Solution

1. Step 1: Write the proportion equation
   578,983.50 : 1,275,763.50 = 1,275,763.50 : x
2. Step 2: Convert to fraction form
   578,983.50/1,275,763.50 = 1,275,763.50/x
3. Step 3: Cross multiply
   578,983.50x = 1,275,763.50 × 1,275,763.50
4. Step 4: Simplify right side
   578,983.50x = 1,627,572,507,932.25
5. Step 5: Solve for x
   x = 1,627,572,507,932.25/578,983.50
6. Step 6: Final answer
   x = 2,811,086.17