Finding the Third Proportional to 787,696 and 1,687,476

Step by Step Solution

1. Step 1: Write the proportion equation
   787,696 : 1,687,476 = 1,687,476 : x
2. Step 2: Convert to fraction form
   787,696/1,687,476 = 1,687,476/x
3. Step 3: Cross multiply
   787,696x = 1,687,476 × 1,687,476
4. Step 4: Simplify right side
   787,696x = 2,847,575,250,576
5. Step 5: Solve for x
   x = 2,847,575,250,576/787,696
6. Step 6: Final answer
   x = 3,615,068.82