Finding the Third Proportional to 55,054.50 and 146,605.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,054.50 : 146,605.50 = 146,605.50 : x
2. Step 2: Convert to fraction form
   55,054.50/146,605.50 = 146,605.50/x
3. Step 3: Cross multiply
   55,054.50x = 146,605.50 × 146,605.50
4. Step 4: Simplify right side
   55,054.50x = 21,493,172,630.25
5. Step 5: Solve for x
   x = 21,493,172,630.25/55,054.50
6. Step 6: Final answer
   x = 390,398.11