Finding the Third Proportional to 137,139 and 299,910

Step by Step Solution

1. Step 1: Write the proportion equation
   137,139 : 299,910 = 299,910 : x
2. Step 2: Convert to fraction form
   137,139/299,910 = 299,910/x
3. Step 3: Cross multiply
   137,139x = 299,910 × 299,910
4. Step 4: Simplify right side
   137,139x = 89,946,008,100
5. Step 5: Solve for x
   x = 89,946,008,100/137,139
6. Step 6: Final answer
   x = 655,874.76