Finding the Third Proportional to 58,455.50 and 141,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,455.50 : 141,339.50 = 141,339.50 : x
2. Step 2: Convert to fraction form
   58,455.50/141,339.50 = 141,339.50/x
3. Step 3: Cross multiply
   58,455.50x = 141,339.50 × 141,339.50
4. Step 4: Simplify right side
   58,455.50x = 19,976,854,260.25
5. Step 5: Solve for x
   x = 19,976,854,260.25/58,455.50
6. Step 6: Final answer
   x = 341,744.65