Finding the Third Proportional to 207,765 and 455,078.25

Step by Step Solution

1. Step 1: Write the proportion equation
   207,765 : 455,078.25 = 455,078.25 : x
2. Step 2: Convert to fraction form
   207,765/455,078.25 = 455,078.25/x
3. Step 3: Cross multiply
   207,765x = 455,078.25 × 455,078.25
4. Step 4: Simplify right side
   207,765x = 207,096,213,623.06
5. Step 5: Solve for x
   x = 207,096,213,623.06/207,765
6. Step 6: Final answer
   x = 996,781.04