Finding the Third Proportional to 57,799.83 and 86,464.76

Step by Step Solution

1. Step 1: Write the proportion equation
   57,799.83 : 86,464.76 = 86,464.76 : x
2. Step 2: Convert to fraction form
   57,799.83/86,464.76 = 86,464.76/x
3. Step 3: Cross multiply
   57,799.83x = 86,464.76 × 86,464.76
4. Step 4: Simplify right side
   57,799.83x = 7,476,154,343.57
5. Step 5: Solve for x
   x = 7,476,154,343.57/57,799.83
6. Step 6: Final answer
   x = 129,345.62