Finding the Third Proportional to 5,429,762 and 10,722,472

Step by Step Solution

1. Step 1: Write the proportion equation
   5,429,762 : 10,722,472 = 10,722,472 : x
2. Step 2: Convert to fraction form
   5,429,762/10,722,472 = 10,722,472/x
3. Step 3: Cross multiply
   5,429,762x = 10,722,472 × 10,722,472
4. Step 4: Simplify right side
   5,429,762x = 114,971,405,790,784
5. Step 5: Solve for x
   x = 114,971,405,790,784/5,429,762
6. Step 6: Final answer
   x = 21,174,299.31