Finding the Third Proportional to 431,410.50 and 675,274.50

Step by Step Solution

1. Step 1: Write the proportion equation
   431,410.50 : 675,274.50 = 675,274.50 : x
2. Step 2: Convert to fraction form
   431,410.50/675,274.50 = 675,274.50/x
3. Step 3: Cross multiply
   431,410.50x = 675,274.50 × 675,274.50
4. Step 4: Simplify right side
   431,410.50x = 455,995,650,350.25
5. Step 5: Solve for x
   x = 455,995,650,350.25/431,410.50
6. Step 6: Final answer
   x = 1,056,987.83