Finding the Third Proportional to 55,494 and 84,631.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,494 : 84,631.50 = 84,631.50 : x
2. Step 2: Convert to fraction form
   55,494/84,631.50 = 84,631.50/x
3. Step 3: Cross multiply
   55,494x = 84,631.50 × 84,631.50
4. Step 4: Simplify right side
   55,494x = 7,162,490,792.25
5. Step 5: Solve for x
   x = 7,162,490,792.25/55,494
6. Step 6: Final answer
   x = 129,067.84