Finding the Third Proportional to 143,157 and 305,272.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,157 : 305,272.50 = 305,272.50 : x
2. Step 2: Convert to fraction form
   143,157/305,272.50 = 305,272.50/x
3. Step 3: Cross multiply
   143,157x = 305,272.50 × 305,272.50
4. Step 4: Simplify right side
   143,157x = 93,191,299,256.25
5. Step 5: Solve for x
   x = 93,191,299,256.25/143,157
6. Step 6: Final answer
   x = 650,972.70