Finding the Third Proportional to 4,620,528 and 7,182,120

Step by Step Solution

1. Step 1: Write the proportion equation
   4,620,528 : 7,182,120 = 7,182,120 : x
2. Step 2: Convert to fraction form
   4,620,528/7,182,120 = 7,182,120/x
3. Step 3: Cross multiply
   4,620,528x = 7,182,120 × 7,182,120
4. Step 4: Simplify right side
   4,620,528x = 51,582,847,694,400
5. Step 5: Solve for x
   x = 51,582,847,694,400/4,620,528
6. Step 6: Final answer
   x = 11,163,842.68