Finding the Third Proportional to 139,635 and 301,407

Step by Step Solution

1. Step 1: Write the proportion equation
   139,635 : 301,407 = 301,407 : x
2. Step 2: Convert to fraction form
   139,635/301,407 = 301,407/x
3. Step 3: Cross multiply
   139,635x = 301,407 × 301,407
4. Step 4: Simplify right side
   139,635x = 90,846,179,649
5. Step 5: Solve for x
   x = 90,846,179,649/139,635
6. Step 6: Final answer
   x = 650,597.48