Finding the Third Proportional to 9,038,388 and 12,642,060

Step by Step Solution

1. Step 1: Write the proportion equation
   9,038,388 : 12,642,060 = 12,642,060 : x
2. Step 2: Convert to fraction form
   9,038,388/12,642,060 = 12,642,060/x
3. Step 3: Cross multiply
   9,038,388x = 12,642,060 × 12,642,060
4. Step 4: Simplify right side
   9,038,388x = 159,821,681,043,600
5. Step 5: Solve for x
   x = 159,821,681,043,600/9,038,388
6. Step 6: Final answer
   x = 17,682,542.62