Finding the Third Proportional to 139,509 and 297,000

Step by Step Solution

1. Step 1: Write the proportion equation
   139,509 : 297,000 = 297,000 : x
2. Step 2: Convert to fraction form
   139,509/297,000 = 297,000/x
3. Step 3: Cross multiply
   139,509x = 297,000 × 297,000
4. Step 4: Simplify right side
   139,509x = 88,209,000,000
5. Step 5: Solve for x
   x = 88,209,000,000/139,509
6. Step 6: Final answer
   x = 632,281.79