Finding the Third Proportional to 4,443,628 and 9,690,056

Step by Step Solution

1. Step 1: Write the proportion equation
   4,443,628 : 9,690,056 = 9,690,056 : x
2. Step 2: Convert to fraction form
   4,443,628/9,690,056 = 9,690,056/x
3. Step 3: Cross multiply
   4,443,628x = 9,690,056 × 9,690,056
4. Step 4: Simplify right side
   4,443,628x = 93,897,185,283,136
5. Step 5: Solve for x
   x = 93,897,185,283,136/4,443,628
6. Step 6: Final answer
   x = 21,130,748.41