Finding the Third Proportional to 9,892,400 and 21,476,786

Step by Step Solution

1. Step 1: Write the proportion equation
   9,892,400 : 21,476,786 = 21,476,786 : x
2. Step 2: Convert to fraction form
   9,892,400/21,476,786 = 21,476,786/x
3. Step 3: Cross multiply
   9,892,400x = 21,476,786 × 21,476,786
4. Step 4: Simplify right side
   9,892,400x = 461,252,336,889,796
5. Step 5: Solve for x
   x = 461,252,336,889,796/9,892,400
6. Step 6: Final answer
   x = 46,626,939.56