Finding the Third Proportional to 25,444.50 and 45,420

Step by Step Solution

1. Step 1: Write the proportion equation
   25,444.50 : 45,420 = 45,420 : x
2. Step 2: Convert to fraction form
   25,444.50/45,420 = 45,420/x
3. Step 3: Cross multiply
   25,444.50x = 45,420 × 45,420
4. Step 4: Simplify right side
   25,444.50x = 2,062,976,400
5. Step 5: Solve for x
   x = 2,062,976,400/25,444.50
6. Step 6: Final answer
   x = 81,077.50