Finding the Third Proportional to 55,673 and 86,214.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,673 : 86,214.50 = 86,214.50 : x
2. Step 2: Convert to fraction form
   55,673/86,214.50 = 86,214.50/x
3. Step 3: Cross multiply
   55,673x = 86,214.50 × 86,214.50
4. Step 4: Simplify right side
   55,673x = 7,432,940,010.25
5. Step 5: Solve for x
   x = 7,432,940,010.25/55,673
6. Step 6: Final answer
   x = 133,510.68