Finding the Third Proportional to 56,819.29 and 86,958.88

Step by Step Solution

1. Step 1: Write the proportion equation
   56,819.29 : 86,958.88 = 86,958.88 : x
2. Step 2: Convert to fraction form
   56,819.29/86,958.88 = 86,958.88/x
3. Step 3: Cross multiply
   56,819.29x = 86,958.88 × 86,958.88
4. Step 4: Simplify right side
   56,819.29x = 7,561,846,620.63
5. Step 5: Solve for x
   x = 7,561,846,620.63/56,819.29
6. Step 6: Final answer
   x = 133,085.92