Finding the Third Proportional to 51,009.75 and 84,295.69

Step by Step Solution

1. Step 1: Write the proportion equation
   51,009.75 : 84,295.69 = 84,295.69 : x
2. Step 2: Convert to fraction form
   51,009.75/84,295.69 = 84,295.69/x
3. Step 3: Cross multiply
   51,009.75x = 84,295.69 × 84,295.69
4. Step 4: Simplify right side
   51,009.75x = 7,105,762,931.10
5. Step 5: Solve for x
   x = 7,105,762,931.10/51,009.75
6. Step 6: Final answer
   x = 139,302.05