Finding the Third Proportional to 53,643 and 72,854.25

Step by Step Solution

1. Step 1: Write the proportion equation
   53,643 : 72,854.25 = 72,854.25 : x
2. Step 2: Convert to fraction form
   53,643/72,854.25 = 72,854.25/x
3. Step 3: Cross multiply
   53,643x = 72,854.25 × 72,854.25
4. Step 4: Simplify right side
   53,643x = 5,307,741,743.06
5. Step 5: Solve for x
   x = 5,307,741,743.06/53,643
6. Step 6: Final answer
   x = 98,945.65