Finding the Third Proportional to 108,358.50 and 143,779.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,358.50 : 143,779.50 = 143,779.50 : x
2. Step 2: Convert to fraction form
   108,358.50/143,779.50 = 143,779.50/x
3. Step 3: Cross multiply
   108,358.50x = 143,779.50 × 143,779.50
4. Step 4: Simplify right side
   108,358.50x = 20,672,544,620.25
5. Step 5: Solve for x
   x = 20,672,544,620.25/108,358.50
6. Step 6: Final answer
   x = 190,779.17