Finding the Third Proportional to 210,331 and 456,150

Step by Step Solution

1. Step 1: Write the proportion equation
   210,331 : 456,150 = 456,150 : x
2. Step 2: Convert to fraction form
   210,331/456,150 = 456,150/x
3. Step 3: Cross multiply
   210,331x = 456,150 × 456,150
4. Step 4: Simplify right side
   210,331x = 208,072,822,500
5. Step 5: Solve for x
   x = 208,072,822,500/210,331
6. Step 6: Final answer
   x = 989,263.70