Finding the Third Proportional to 207,765 and 310,280.63

Step by Step Solution

1. Step 1: Write the proportion equation
   207,765 : 310,280.63 = 310,280.63 : x
2. Step 2: Convert to fraction form
   207,765/310,280.63 = 310,280.63/x
3. Step 3: Cross multiply
   207,765x = 310,280.63 × 310,280.63
4. Step 4: Simplify right side
   207,765x = 96,274,066,250.39
5. Step 5: Solve for x
   x = 96,274,066,250.39/207,765
6. Step 6: Final answer
   x = 463,379.62