Finding the Third Proportional to 5,069,361 and 10,558,140

Step by Step Solution

1. Step 1: Write the proportion equation
   5,069,361 : 10,558,140 = 10,558,140 : x
2. Step 2: Convert to fraction form
   5,069,361/10,558,140 = 10,558,140/x
3. Step 3: Cross multiply
   5,069,361x = 10,558,140 × 10,558,140
4. Step 4: Simplify right side
   5,069,361x = 111,474,320,259,600
5. Step 5: Solve for x
   x = 111,474,320,259,600/5,069,361
6. Step 6: Final answer
   x = 21,989,816.91