Finding the Third Proportional to 478,603 and 740,982.75

Step by Step Solution

1. Step 1: Write the proportion equation
   478,603 : 740,982.75 = 740,982.75 : x
2. Step 2: Convert to fraction form
   478,603/740,982.75 = 740,982.75/x
3. Step 3: Cross multiply
   478,603x = 740,982.75 × 740,982.75
4. Step 4: Simplify right side
   478,603x = 549,055,435,797.56
5. Step 5: Solve for x
   x = 549,055,435,797.56/478,603
6. Step 6: Final answer
   x = 1,147,204.33