Finding the Third Proportional to 51,045.19 and 65,632.78

Step by Step Solution

1. Step 1: Write the proportion equation
   51,045.19 : 65,632.78 = 65,632.78 : x
2. Step 2: Convert to fraction form
   51,045.19/65,632.78 = 65,632.78/x
3. Step 3: Cross multiply
   51,045.19x = 65,632.78 × 65,632.78
4. Step 4: Simplify right side
   51,045.19x = 4,307,661,974.61
5. Step 5: Solve for x
   x = 4,307,661,974.61/51,045.19
6. Step 6: Final answer
   x = 84,389.19