Finding the Third Proportional to 210,336 and 456,160.50

Step by Step Solution

1. Step 1: Write the proportion equation
   210,336 : 456,160.50 = 456,160.50 : x
2. Step 2: Convert to fraction form
   210,336/456,160.50 = 456,160.50/x
3. Step 3: Cross multiply
   210,336x = 456,160.50 × 456,160.50
4. Step 4: Simplify right side
   210,336x = 208,082,401,760.25
5. Step 5: Solve for x
   x = 208,082,401,760.25/210,336
6. Step 6: Final answer
   x = 989,285.72