Finding the Third Proportional to 21,288,636 and 33,357,168

Step by Step Solution

1. Step 1: Write the proportion equation
   21,288,636 : 33,357,168 = 33,357,168 : x
2. Step 2: Convert to fraction form
   21,288,636/33,357,168 = 33,357,168/x
3. Step 3: Cross multiply
   21,288,636x = 33,357,168 × 33,357,168
4. Step 4: Simplify right side
   21,288,636x = 1,112,700,656,980,224
5. Step 5: Solve for x
   x = 1,112,700,656,980,224/21,288,636
6. Step 6: Final answer
   x = 52,267,353.20