Finding the Third Proportional to 10,738,819,278 and 21,783,842,685

Step by Step Solution

1. Step 1: Write the proportion equation
   10,738,819,278 : 21,783,842,685 = 21,783,842,685 : x
2. Step 2: Convert to fraction form
   10,738,819,278/21,783,842,685 = 21,783,842,685/x
3. Step 3: Cross multiply
   10,738,819,278x = 21,783,842,685 × 21,783,842,685
4. Step 4: Simplify right side
   10,738,819,278x = 474,535,802,124,828,016,640
5. Step 5: Solve for x
   x = 474,535,802,124,828,016,640/10,738,819,278
6. Step 6: Final answer
   x = 44,188,824,659.43