Finding the Third Proportional to 55,511.25 and 84,647.25

Step by Step Solution

1. Step 1: Write the proportion equation
   55,511.25 : 84,647.25 = 84,647.25 : x
2. Step 2: Convert to fraction form
   55,511.25/84,647.25 = 84,647.25/x
3. Step 3: Cross multiply
   55,511.25x = 84,647.25 × 84,647.25
4. Step 4: Simplify right side
   55,511.25x = 7,165,156,932.56
5. Step 5: Solve for x
   x = 7,165,156,932.56/55,511.25
6. Step 6: Final answer
   x = 129,075.76