Finding the Third Proportional to 7,669,365 and 12,209,388

Step by Step Solution

1. Step 1: Write the proportion equation
   7,669,365 : 12,209,388 = 12,209,388 : x
2. Step 2: Convert to fraction form
   7,669,365/12,209,388 = 12,209,388/x
3. Step 3: Cross multiply
   7,669,365x = 12,209,388 × 12,209,388
4. Step 4: Simplify right side
   7,669,365x = 149,069,155,334,544
5. Step 5: Solve for x
   x = 149,069,155,334,544/7,669,365
6. Step 6: Final answer
   x = 19,436,961.90