Finding the Third Proportional to 69,045.75 and 146,371.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,045.75 : 146,371.50 = 146,371.50 : x
2. Step 2: Convert to fraction form
   69,045.75/146,371.50 = 146,371.50/x
3. Step 3: Cross multiply
   69,045.75x = 146,371.50 × 146,371.50
4. Step 4: Simplify right side
   69,045.75x = 21,424,616,012.25
5. Step 5: Solve for x
   x = 21,424,616,012.25/69,045.75
6. Step 6: Final answer
   x = 310,295.94