Finding the Third Proportional to 495,642.50 and 1,055,221

Step by Step Solution

1. Step 1: Write the proportion equation
   495,642.50 : 1,055,221 = 1,055,221 : x
2. Step 2: Convert to fraction form
   495,642.50/1,055,221 = 1,055,221/x
3. Step 3: Cross multiply
   495,642.50x = 1,055,221 × 1,055,221
4. Step 4: Simplify right side
   495,642.50x = 1,113,491,358,841
5. Step 5: Solve for x
   x = 1,113,491,358,841/495,642.50
6. Step 6: Final answer
   x = 2,246,561.50