Finding the Third Proportional to 137,086.88 and 300,659.63

Step by Step Solution

1. Step 1: Write the proportion equation
   137,086.88 : 300,659.63 = 300,659.63 : x
2. Step 2: Convert to fraction form
   137,086.88/300,659.63 = 300,659.63/x
3. Step 3: Cross multiply
   137,086.88x = 300,659.63 × 300,659.63
4. Step 4: Simplify right side
   137,086.88x = 90,396,210,105.14
5. Step 5: Solve for x
   x = 90,396,210,105.14/137,086.88
6. Step 6: Final answer
   x = 659,408.20