Finding the Third Proportional to 139,902 and 299,751

Step by Step Solution

1. Step 1: Write the proportion equation
   139,902 : 299,751 = 299,751 : x
2. Step 2: Convert to fraction form
   139,902/299,751 = 299,751/x
3. Step 3: Cross multiply
   139,902x = 299,751 × 299,751
4. Step 4: Simplify right side
   139,902x = 89,850,662,001
5. Step 5: Solve for x
   x = 89,850,662,001/139,902
6. Step 6: Final answer
   x = 642,240.01