Finding the Third Proportional to 58,617 and 138,233.25

Step by Step Solution

1. Step 1: Write the proportion equation
   58,617 : 138,233.25 = 138,233.25 : x
2. Step 2: Convert to fraction form
   58,617/138,233.25 = 138,233.25/x
3. Step 3: Cross multiply
   58,617x = 138,233.25 × 138,233.25
4. Step 4: Simplify right side
   58,617x = 19,108,431,405.56
5. Step 5: Solve for x
   x = 19,108,431,405.56/58,617
6. Step 6: Final answer
   x = 325,987.88