Finding the Third Proportional to 55,212 and 86,098.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,212 : 86,098.50 = 86,098.50 : x
2. Step 2: Convert to fraction form
   55,212/86,098.50 = 86,098.50/x
3. Step 3: Cross multiply
   55,212x = 86,098.50 × 86,098.50
4. Step 4: Simplify right side
   55,212x = 7,412,951,702.25
5. Step 5: Solve for x
   x = 7,412,951,702.25/55,212
6. Step 6: Final answer
   x = 134,263.42