Finding the Third Proportional to 25,470 and 42,441.75

Step by Step Solution

1. Step 1: Write the proportion equation
   25,470 : 42,441.75 = 42,441.75 : x
2. Step 2: Convert to fraction form
   25,470/42,441.75 = 42,441.75/x
3. Step 3: Cross multiply
   25,470x = 42,441.75 × 42,441.75
4. Step 4: Simplify right side
   25,470x = 1,801,302,143.06
5. Step 5: Solve for x
   x = 1,801,302,143.06/25,470
6. Step 6: Final answer
   x = 70,722.50