Finding the Third Proportional to 210,147.75 and 456,016.50

Step by Step Solution

1. Step 1: Write the proportion equation
   210,147.75 : 456,016.50 = 456,016.50 : x
2. Step 2: Convert to fraction form
   210,147.75/456,016.50 = 456,016.50/x
3. Step 3: Cross multiply
   210,147.75x = 456,016.50 × 456,016.50
4. Step 4: Simplify right side
   210,147.75x = 207,951,048,272.25
5. Step 5: Solve for x
   x = 207,951,048,272.25/210,147.75
6. Step 6: Final answer
   x = 989,546.87