Finding the Third Proportional to 9,992,423 and 21,791,992

Step by Step Solution

1. Step 1: Write the proportion equation
   9,992,423 : 21,791,992 = 21,791,992 : x
2. Step 2: Convert to fraction form
   9,992,423/21,791,992 = 21,791,992/x
3. Step 3: Cross multiply
   9,992,423x = 21,791,992 × 21,791,992
4. Step 4: Simplify right side
   9,992,423x = 474,890,915,328,064
5. Step 5: Solve for x
   x = 474,890,915,328,064/9,992,423
6. Step 6: Final answer
   x = 47,525,101.30