Finding the Third Proportional to 139,092 and 297,864

Step by Step Solution

1. Step 1: Write the proportion equation
   139,092 : 297,864 = 297,864 : x
2. Step 2: Convert to fraction form
   139,092/297,864 = 297,864/x
3. Step 3: Cross multiply
   139,092x = 297,864 × 297,864
4. Step 4: Simplify right side
   139,092x = 88,722,962,496
5. Step 5: Solve for x
   x = 88,722,962,496/139,092
6. Step 6: Final answer
   x = 637,872.51