Finding the Third Proportional to 787,778 and 1,718,140

Step by Step Solution

1. Step 1: Write the proportion equation
   787,778 : 1,718,140 = 1,718,140 : x
2. Step 2: Convert to fraction form
   787,778/1,718,140 = 1,718,140/x
3. Step 3: Cross multiply
   787,778x = 1,718,140 × 1,718,140
4. Step 4: Simplify right side
   787,778x = 2,952,005,059,600
5. Step 5: Solve for x
   x = 2,952,005,059,600/787,778
6. Step 6: Final answer
   x = 3,747,255.01