Finding the Third Proportional to 513,684 and 818,093.25

Step by Step Solution

1. Step 1: Write the proportion equation
   513,684 : 818,093.25 = 818,093.25 : x
2. Step 2: Convert to fraction form
   513,684/818,093.25 = 818,093.25/x
3. Step 3: Cross multiply
   513,684x = 818,093.25 × 818,093.25
4. Step 4: Simplify right side
   513,684x = 669,276,565,695.56
5. Step 5: Solve for x
   x = 669,276,565,695.56/513,684
6. Step 6: Final answer
   x = 1,302,895.49