Finding the Third Proportional to 61,603.50 and 141,879

Step by Step Solution

1. Step 1: Write the proportion equation
   61,603.50 : 141,879 = 141,879 : x
2. Step 2: Convert to fraction form
   61,603.50/141,879 = 141,879/x
3. Step 3: Cross multiply
   61,603.50x = 141,879 × 141,879
4. Step 4: Simplify right side
   61,603.50x = 20,129,650,641
5. Step 5: Solve for x
   x = 20,129,650,641/61,603.50
6. Step 6: Final answer
   x = 326,761.48