Finding the Third Proportional to 64,955.25 and 138,111.75

Step by Step Solution

1. Step 1: Write the proportion equation
   64,955.25 : 138,111.75 = 138,111.75 : x
2. Step 2: Convert to fraction form
   64,955.25/138,111.75 = 138,111.75/x
3. Step 3: Cross multiply
   64,955.25x = 138,111.75 × 138,111.75
4. Step 4: Simplify right side
   64,955.25x = 19,074,855,488.06
5. Step 5: Solve for x
   x = 19,074,855,488.06/64,955.25
6. Step 6: Final answer
   x = 293,661.49