Finding the Third Proportional to 208,708 and 456,776

Step by Step Solution

1. Step 1: Write the proportion equation
   208,708 : 456,776 = 456,776 : x
2. Step 2: Convert to fraction form
   208,708/456,776 = 456,776/x
3. Step 3: Cross multiply
   208,708x = 456,776 × 456,776
4. Step 4: Simplify right side
   208,708x = 208,644,314,176
5. Step 5: Solve for x
   x = 208,644,314,176/208,708
6. Step 6: Final answer
   x = 999,694.86