Finding the Third Proportional to 139,012 and 297,708

Step by Step Solution

1. Step 1: Write the proportion equation
   139,012 : 297,708 = 297,708 : x
2. Step 2: Convert to fraction form
   139,012/297,708 = 297,708/x
3. Step 3: Cross multiply
   139,012x = 297,708 × 297,708
4. Step 4: Simplify right side
   139,012x = 88,630,053,264
5. Step 5: Solve for x
   x = 88,630,053,264/139,012
6. Step 6: Final answer
   x = 637,571.24