Finding the Third Proportional to 1,800,258 and 4,249,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,800,258 : 4,249,680 = 4,249,680 : x
2. Step 2: Convert to fraction form
   1,800,258/4,249,680 = 4,249,680/x
3. Step 3: Cross multiply
   1,800,258x = 4,249,680 × 4,249,680
4. Step 4: Simplify right side
   1,800,258x = 18,059,780,102,400
5. Step 5: Solve for x
   x = 18,059,780,102,400/1,800,258
6. Step 6: Final answer
   x = 10,031,773.28