Finding the Third Proportional to 139,107 and 297,900

Step by Step Solution

1. Step 1: Write the proportion equation
   139,107 : 297,900 = 297,900 : x
2. Step 2: Convert to fraction form
   139,107/297,900 = 297,900/x
3. Step 3: Cross multiply
   139,107x = 297,900 × 297,900
4. Step 4: Simplify right side
   139,107x = 88,744,410,000
5. Step 5: Solve for x
   x = 88,744,410,000/139,107
6. Step 6: Final answer
   x = 637,957.90