Finding the Third Proportional to 912,890 and 1,853,428

Step by Step Solution

1. Step 1: Write the proportion equation
   912,890 : 1,853,428 = 1,853,428 : x
2. Step 2: Convert to fraction form
   912,890/1,853,428 = 1,853,428/x
3. Step 3: Cross multiply
   912,890x = 1,853,428 × 1,853,428
4. Step 4: Simplify right side
   912,890x = 3,435,195,351,184
5. Step 5: Solve for x
   x = 3,435,195,351,184/912,890
6. Step 6: Final answer
   x = 3,762,989.35