Finding the Third Proportional to 9,765,927 and 21,213,144

Step by Step Solution

1. Step 1: Write the proportion equation
   9,765,927 : 21,213,144 = 21,213,144 : x
2. Step 2: Convert to fraction form
   9,765,927/21,213,144 = 21,213,144/x
3. Step 3: Cross multiply
   9,765,927x = 21,213,144 × 21,213,144
4. Step 4: Simplify right side
   9,765,927x = 449,997,478,364,736
5. Step 5: Solve for x
   x = 449,997,478,364,736/9,765,927
6. Step 6: Final answer
   x = 46,078,316.82