Finding the Third Proportional to 15,789,840 and 32,820,768

Step by Step Solution

1. Step 1: Write the proportion equation
   15,789,840 : 32,820,768 = 32,820,768 : x
2. Step 2: Convert to fraction form
   15,789,840/32,820,768 = 32,820,768/x
3. Step 3: Cross multiply
   15,789,840x = 32,820,768 × 32,820,768
4. Step 4: Simplify right side
   15,789,840x = 1,077,202,812,109,824
5. Step 5: Solve for x
   x = 1,077,202,812,109,824/15,789,840
6. Step 6: Final answer
   x = 68,221,262.03