Finding the Third Proportional to 276,655.50 and 425,844

Step by Step Solution

1. Step 1: Write the proportion equation
   276,655.50 : 425,844 = 425,844 : x
2. Step 2: Convert to fraction form
   276,655.50/425,844 = 425,844/x
3. Step 3: Cross multiply
   276,655.50x = 425,844 × 425,844
4. Step 4: Simplify right side
   276,655.50x = 181,343,112,336
5. Step 5: Solve for x
   x = 181,343,112,336/276,655.50
6. Step 6: Final answer
   x = 655,483.49