Finding the Third Proportional to 143,032.50 and 310,968

Step by Step Solution

1. Step 1: Write the proportion equation
   143,032.50 : 310,968 = 310,968 : x
2. Step 2: Convert to fraction form
   143,032.50/310,968 = 310,968/x
3. Step 3: Cross multiply
   143,032.50x = 310,968 × 310,968
4. Step 4: Simplify right side
   143,032.50x = 96,701,097,024
5. Step 5: Solve for x
   x = 96,701,097,024/143,032.50
6. Step 6: Final answer
   x = 676,077.79