Finding the Third Proportional to 3,532,212 and 7,863,840

Step by Step Solution

1. Step 1: Write the proportion equation
   3,532,212 : 7,863,840 = 7,863,840 : x
2. Step 2: Convert to fraction form
   3,532,212/7,863,840 = 7,863,840/x
3. Step 3: Cross multiply
   3,532,212x = 7,863,840 × 7,863,840
4. Step 4: Simplify right side
   3,532,212x = 61,839,979,545,600
5. Step 5: Solve for x
   x = 61,839,979,545,600/3,532,212
6. Step 6: Final answer
   x = 17,507,437.14