Finding the Third Proportional to 53,051.25 and 81,422.25

Step by Step Solution

1. Step 1: Write the proportion equation
   53,051.25 : 81,422.25 = 81,422.25 : x
2. Step 2: Convert to fraction form
   53,051.25/81,422.25 = 81,422.25/x
3. Step 3: Cross multiply
   53,051.25x = 81,422.25 × 81,422.25
4. Step 4: Simplify right side
   53,051.25x = 6,629,582,795.06
5. Step 5: Solve for x
   x = 6,629,582,795.06/53,051.25
6. Step 6: Final answer
   x = 124,965.63