Finding the Third Proportional to 51,072 and 84,404.25

Step by Step Solution

1. Step 1: Write the proportion equation
   51,072 : 84,404.25 = 84,404.25 : x
2. Step 2: Convert to fraction form
   51,072/84,404.25 = 84,404.25/x
3. Step 3: Cross multiply
   51,072x = 84,404.25 × 84,404.25
4. Step 4: Simplify right side
   51,072x = 7,124,077,418.06
5. Step 5: Solve for x
   x = 7,124,077,418.06/51,072
6. Step 6: Final answer
   x = 139,490.86