Finding the Third Proportional to 9,774,642 and 21,472,386

Step by Step Solution

1. Step 1: Write the proportion equation
   9,774,642 : 21,472,386 = 21,472,386 : x
2. Step 2: Convert to fraction form
   9,774,642/21,472,386 = 21,472,386/x
3. Step 3: Cross multiply
   9,774,642x = 21,472,386 × 21,472,386
4. Step 4: Simplify right side
   9,774,642x = 461,063,360,532,996
5. Step 5: Solve for x
   x = 461,063,360,532,996/9,774,642
6. Step 6: Final answer
   x = 47,169,334.75