Finding the Third Proportional to 5,006,574 and 10,278,558

Step by Step Solution

1. Step 1: Write the proportion equation
   5,006,574 : 10,278,558 = 10,278,558 : x
2. Step 2: Convert to fraction form
   5,006,574/10,278,558 = 10,278,558/x
3. Step 3: Cross multiply
   5,006,574x = 10,278,558 × 10,278,558
4. Step 4: Simplify right side
   5,006,574x = 105,648,754,559,364
5. Step 5: Solve for x
   x = 105,648,754,559,364/5,006,574
6. Step 6: Final answer
   x = 21,102,005.99