Finding the Third Proportional to 787,538 and 1,686,946

Step by Step Solution

1. Step 1: Write the proportion equation
   787,538 : 1,686,946 = 1,686,946 : x
2. Step 2: Convert to fraction form
   787,538/1,686,946 = 1,686,946/x
3. Step 3: Cross multiply
   787,538x = 1,686,946 × 1,686,946
4. Step 4: Simplify right side
   787,538x = 2,845,786,806,916
5. Step 5: Solve for x
   x = 2,845,786,806,916/787,538
6. Step 6: Final answer
   x = 3,613,523.17