Finding the Third Proportional to 210,329.50 and 456,147

Step by Step Solution

1. Step 1: Write the proportion equation
   210,329.50 : 456,147 = 456,147 : x
2. Step 2: Convert to fraction form
   210,329.50/456,147 = 456,147/x
3. Step 3: Cross multiply
   210,329.50x = 456,147 × 456,147
4. Step 4: Simplify right side
   210,329.50x = 208,070,085,609
5. Step 5: Solve for x
   x = 208,070,085,609/210,329.50
6. Step 6: Final answer
   x = 989,257.74