Finding the Third Proportional to 5,013,946 and 7,638,423

Step by Step Solution

1. Step 1: Write the proportion equation
   5,013,946 : 7,638,423 = 7,638,423 : x
2. Step 2: Convert to fraction form
   5,013,946/7,638,423 = 7,638,423/x
3. Step 3: Cross multiply
   5,013,946x = 7,638,423 × 7,638,423
4. Step 4: Simplify right side
   5,013,946x = 58,345,505,926,929
5. Step 5: Solve for x
   x = 58,345,505,926,929/5,013,946
6. Step 6: Final answer
   x = 11,636,644.26