Finding the Third Proportional to 58,651 and 138,317.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,651 : 138,317.50 = 138,317.50 : x
2. Step 2: Convert to fraction form
   58,651/138,317.50 = 138,317.50/x
3. Step 3: Cross multiply
   58,651x = 138,317.50 × 138,317.50
4. Step 4: Simplify right side
   58,651x = 19,131,730,806.25
5. Step 5: Solve for x
   x = 19,131,730,806.25/58,651
6. Step 6: Final answer
   x = 326,196.16