Finding the Third Proportional to 68,862 and 143,908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,862 : 143,908.50 = 143,908.50 : x
2. Step 2: Convert to fraction form
   68,862/143,908.50 = 143,908.50/x
3. Step 3: Cross multiply
   68,862x = 143,908.50 × 143,908.50
4. Step 4: Simplify right side
   68,862x = 20,709,656,372.25
5. Step 5: Solve for x
   x = 20,709,656,372.25/68,862
6. Step 6: Final answer
   x = 300,741.43