Finding the Third Proportional to 139,024 and 299,108

Step by Step Solution

1. Step 1: Write the proportion equation
   139,024 : 299,108 = 299,108 : x
2. Step 2: Convert to fraction form
   139,024/299,108 = 299,108/x
3. Step 3: Cross multiply
   139,024x = 299,108 × 299,108
4. Step 4: Simplify right side
   139,024x = 89,465,595,664
5. Step 5: Solve for x
   x = 89,465,595,664/139,024
6. Step 6: Final answer
   x = 643,526.27