Finding the Third Proportional to 55,731 and 86,335.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,731 : 86,335.50 = 86,335.50 : x
2. Step 2: Convert to fraction form
   55,731/86,335.50 = 86,335.50/x
3. Step 3: Cross multiply
   55,731x = 86,335.50 × 86,335.50
4. Step 4: Simplify right side
   55,731x = 7,453,818,560.25
5. Step 5: Solve for x
   x = 7,453,818,560.25/55,731
6. Step 6: Final answer
   x = 133,746.36