Finding the Third Proportional to 55,595 and 86,213.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,595 : 86,213.50 = 86,213.50 : x
2. Step 2: Convert to fraction form
   55,595/86,213.50 = 86,213.50/x
3. Step 3: Cross multiply
   55,595x = 86,213.50 × 86,213.50
4. Step 4: Simplify right side
   55,595x = 7,432,767,582.25
5. Step 5: Solve for x
   x = 7,432,767,582.25/55,595
6. Step 6: Final answer
   x = 133,694.89