Finding the Third Proportional to 139,158 and 297,993

Step by Step Solution

1. Step 1: Write the proportion equation
   139,158 : 297,993 = 297,993 : x
2. Step 2: Convert to fraction form
   139,158/297,993 = 297,993/x
3. Step 3: Cross multiply
   139,158x = 297,993 × 297,993
4. Step 4: Simplify right side
   139,158x = 88,799,828,049
5. Step 5: Solve for x
   x = 88,799,828,049/139,158
6. Step 6: Final answer
   x = 638,122.34