Finding the Third Proportional to 9,892,396 and 21,476,780

Step by Step Solution

1. Step 1: Write the proportion equation
   9,892,396 : 21,476,780 = 21,476,780 : x
2. Step 2: Convert to fraction form
   9,892,396/21,476,780 = 21,476,780/x
3. Step 3: Cross multiply
   9,892,396x = 21,476,780 × 21,476,780
4. Step 4: Simplify right side
   9,892,396x = 461,252,079,168,400
5. Step 5: Solve for x
   x = 461,252,079,168,400/9,892,396
6. Step 6: Final answer
   x = 46,626,932.36