Finding the Third Proportional to 3,643,572 and 7,847,658

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643,572 : 7,847,658 = 7,847,658 : x
2. Step 2: Convert to fraction form
   3,643,572/7,847,658 = 7,847,658/x
3. Step 3: Cross multiply
   3,643,572x = 7,847,658 × 7,847,658
4. Step 4: Simplify right side
   3,643,572x = 61,585,736,084,964
5. Step 5: Solve for x
   x = 61,585,736,084,964/3,643,572
6. Step 6: Final answer
   x = 16,902,571.46