Finding the Third Proportional to 143,835.75 and 215,752.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,835.75 : 215,752.50 = 215,752.50 : x
2. Step 2: Convert to fraction form
   143,835.75/215,752.50 = 215,752.50/x
3. Step 3: Cross multiply
   143,835.75x = 215,752.50 × 215,752.50
4. Step 4: Simplify right side
   143,835.75x = 46,549,141,256.25
5. Step 5: Solve for x
   x = 46,549,141,256.25/143,835.75
6. Step 6: Final answer
   x = 323,627.06