Finding the Third Proportional to 28,290.25 and 61,446.20

Step by Step Solution

1. Step 1: Write the proportion equation
   28,290.25 : 61,446.20 = 61,446.20 : x
2. Step 2: Convert to fraction form
   28,290.25/61,446.20 = 61,446.20/x
3. Step 3: Cross multiply
   28,290.25x = 61,446.20 × 61,446.20
4. Step 4: Simplify right side
   28,290.25x = 3,775,635,398.43
5. Step 5: Solve for x
   x = 3,775,635,398.43/28,290.25
6. Step 6: Final answer
   x = 133,460.65