Finding the Third Proportional to 4,921,976 and 7,090,299

Step by Step Solution

1. Step 1: Write the proportion equation
   4,921,976 : 7,090,299 = 7,090,299 : x
2. Step 2: Convert to fraction form
   4,921,976/7,090,299 = 7,090,299/x
3. Step 3: Cross multiply
   4,921,976x = 7,090,299 × 7,090,299
4. Step 4: Simplify right side
   4,921,976x = 50,272,339,909,401
5. Step 5: Solve for x
   x = 50,272,339,909,401/4,921,976
6. Step 6: Final answer
   x = 10,213,853.12