Finding the Third Proportional to 123,419,722 and 263,241,942

Step by Step Solution

1. Step 1: Write the proportion equation
   123,419,722 : 263,241,942 = 263,241,942 : x
2. Step 2: Convert to fraction form
   123,419,722/263,241,942 = 263,241,942/x
3. Step 3: Cross multiply
   123,419,722x = 263,241,942 × 263,241,942
4. Step 4: Simplify right side
   123,419,722x = 69,296,320,027,931,360
5. Step 5: Solve for x
   x = 69,296,320,027,931,360/123,419,722
6. Step 6: Final answer
   x = 561,468,774.24