Finding the Third Proportional to 208,588.50 and 456,379.50

Step by Step Solution

1. Step 1: Write the proportion equation
   208,588.50 : 456,379.50 = 456,379.50 : x
2. Step 2: Convert to fraction form
   208,588.50/456,379.50 = 456,379.50/x
3. Step 3: Cross multiply
   208,588.50x = 456,379.50 × 456,379.50
4. Step 4: Simplify right side
   208,588.50x = 208,282,248,020.25
5. Step 5: Solve for x
   x = 208,282,248,020.25/208,588.50
6. Step 6: Final answer
   x = 998,531.79