Finding the Third Proportional to 68,364 and 143,638.31

Step by Step Solution

1. Step 1: Write the proportion equation
   68,364 : 143,638.31 = 143,638.31 : x
2. Step 2: Convert to fraction form
   68,364/143,638.31 = 143,638.31/x
3. Step 3: Cross multiply
   68,364x = 143,638.31 × 143,638.31
4. Step 4: Simplify right side
   68,364x = 20,631,964,817.85
5. Step 5: Solve for x
   x = 20,631,964,817.85/68,364
6. Step 6: Final answer
   x = 301,795.75