Finding the Third Proportional to 135,042 and 291,016.50

Step by Step Solution

1. Step 1: Write the proportion equation
   135,042 : 291,016.50 = 291,016.50 : x
2. Step 2: Convert to fraction form
   135,042/291,016.50 = 291,016.50/x
3. Step 3: Cross multiply
   135,042x = 291,016.50 × 291,016.50
4. Step 4: Simplify right side
   135,042x = 84,690,603,272.25
5. Step 5: Solve for x
   x = 84,690,603,272.25/135,042
6. Step 6: Final answer
   x = 627,142.69