Finding the Third Proportional to 79,947.38 and 109,836.56

Step by Step Solution

1. Step 1: Write the proportion equation
   79,947.38 : 109,836.56 = 109,836.56 : x
2. Step 2: Convert to fraction form
   79,947.38/109,836.56 = 109,836.56/x
3. Step 3: Cross multiply
   79,947.38x = 109,836.56 × 109,836.56
4. Step 4: Simplify right side
   79,947.38x = 12,064,070,461.82
5. Step 5: Solve for x
   x = 12,064,070,461.82/79,947.38
6. Step 6: Final answer
   x = 150,900.14