Finding the Third Proportional to 139,149 and 297,975

Step by Step Solution

1. Step 1: Write the proportion equation
   139,149 : 297,975 = 297,975 : x
2. Step 2: Convert to fraction form
   139,149/297,975 = 297,975/x
3. Step 3: Cross multiply
   139,149x = 297,975 × 297,975
4. Step 4: Simplify right side
   139,149x = 88,789,100,625
5. Step 5: Solve for x
   x = 88,789,100,625/139,149
6. Step 6: Final answer
   x = 638,086.52