Finding the Third Proportional to 74,605.50 and 145,404

Step by Step Solution

1. Step 1: Write the proportion equation
   74,605.50 : 145,404 = 145,404 : x
2. Step 2: Convert to fraction form
   74,605.50/145,404 = 145,404/x
3. Step 3: Cross multiply
   74,605.50x = 145,404 × 145,404
4. Step 4: Simplify right side
   74,605.50x = 21,142,323,216
5. Step 5: Solve for x
   x = 21,142,323,216/74,605.50
6. Step 6: Final answer
   x = 283,388.27