Finding the Third Proportional to 136,903.88 and 299,616

Step by Step Solution

1. Step 1: Write the proportion equation
   136,903.88 : 299,616 = 299,616 : x
2. Step 2: Convert to fraction form
   136,903.88/299,616 = 299,616/x
3. Step 3: Cross multiply
   136,903.88x = 299,616 × 299,616
4. Step 4: Simplify right side
   136,903.88x = 89,769,747,456
5. Step 5: Solve for x
   x = 89,769,747,456/136,903.88
6. Step 6: Final answer
   x = 655,713.71