Finding the Third Proportional to 62,491.50 and 135,648

Step by Step Solution

1. Step 1: Write the proportion equation
   62,491.50 : 135,648 = 135,648 : x
2. Step 2: Convert to fraction form
   62,491.50/135,648 = 135,648/x
3. Step 3: Cross multiply
   62,491.50x = 135,648 × 135,648
4. Step 4: Simplify right side
   62,491.50x = 18,400,379,904
5. Step 5: Solve for x
   x = 18,400,379,904/62,491.50
6. Step 6: Final answer
   x = 294,446.12