Finding the Third Proportional to 4,916,588 and 7,712,678

Step by Step Solution

1. Step 1: Write the proportion equation
   4,916,588 : 7,712,678 = 7,712,678 : x
2. Step 2: Convert to fraction form
   4,916,588/7,712,678 = 7,712,678/x
3. Step 3: Cross multiply
   4,916,588x = 7,712,678 × 7,712,678
4. Step 4: Simplify right side
   4,916,588x = 59,485,401,931,684
5. Step 5: Solve for x
   x = 59,485,401,931,684/4,916,588
6. Step 6: Final answer
   x = 12,098,919.40