Finding the Third Proportional to 4,152,388 and 9,009,799

Step by Step Solution

1. Step 1: Write the proportion equation
   4,152,388 : 9,009,799 = 9,009,799 : x
2. Step 2: Convert to fraction form
   4,152,388/9,009,799 = 9,009,799/x
3. Step 3: Cross multiply
   4,152,388x = 9,009,799 × 9,009,799
4. Step 4: Simplify right side
   4,152,388x = 81,176,478,020,401
5. Step 5: Solve for x
   x = 81,176,478,020,401/4,152,388
6. Step 6: Final answer
   x = 19,549,347.99