Finding the Third Proportional to 64,977.82 and 81,337.61

Step by Step Solution

1. Step 1: Write the proportion equation
   64,977.82 : 81,337.61 = 81,337.61 : x
2. Step 2: Convert to fraction form
   64,977.82/81,337.61 = 81,337.61/x
3. Step 3: Cross multiply
   64,977.82x = 81,337.61 × 81,337.61
4. Step 4: Simplify right side
   64,977.82x = 6,615,806,063.39
5. Step 5: Solve for x
   x = 6,615,806,063.39/64,977.82
6. Step 6: Final answer
   x = 101,816.37