Finding the Third Proportional to 91,455,182,731 and 196,143,017,942

Step by Step Solution

1. Step 1: Write the proportion equation
   91,455,182,731 : 196,143,017,942 = 196,143,017,942 : x
2. Step 2: Convert to fraction form
   91,455,182,731/196,143,017,942 = 196,143,017,942/x
3. Step 3: Cross multiply
   91,455,182,731x = 196,143,017,942 × 196,143,017,942
4. Step 4: Simplify right side
   91,455,182,731x = 38,472,083,487,395,732,783,104
5. Step 5: Solve for x
   x = 38,472,083,487,395,732,783,104/91,455,182,731
6. Step 6: Final answer
   x = 420,665,973,633.83