Finding the Third Proportional to 53,443.13 and 82,748.25

Step by Step Solution

1. Step 1: Write the proportion equation
   53,443.13 : 82,748.25 = 82,748.25 : x
2. Step 2: Convert to fraction form
   53,443.13/82,748.25 = 82,748.25/x
3. Step 3: Cross multiply
   53,443.13x = 82,748.25 × 82,748.25
4. Step 4: Simplify right side
   53,443.13x = 6,847,272,878.06
5. Step 5: Solve for x
   x = 6,847,272,878.06/53,443.13
6. Step 6: Final answer
   x = 128,122.61