Finding the Third Proportional to 5,038,480 and 10,288,442

Step by Step Solution

1. Step 1: Write the proportion equation
   5,038,480 : 10,288,442 = 10,288,442 : x
2. Step 2: Convert to fraction form
   5,038,480/10,288,442 = 10,288,442/x
3. Step 3: Cross multiply
   5,038,480x = 10,288,442 × 10,288,442
4. Step 4: Simplify right side
   5,038,480x = 105,852,038,787,364
5. Step 5: Solve for x
   x = 105,852,038,787,364/5,038,480
6. Step 6: Final answer
   x = 21,008,724.61