Finding the Third Proportional to 63,446.50 and 137,828

Step by Step Solution

1. Step 1: Write the proportion equation
   63,446.50 : 137,828 = 137,828 : x
2. Step 2: Convert to fraction form
   63,446.50/137,828 = 137,828/x
3. Step 3: Cross multiply
   63,446.50x = 137,828 × 137,828
4. Step 4: Simplify right side
   63,446.50x = 18,996,557,584
5. Step 5: Solve for x
   x = 18,996,557,584/63,446.50
6. Step 6: Final answer
   x = 299,410.65