Finding the Third Proportional to 3,971,506 and 8,572,880

Step by Step Solution

1. Step 1: Write the proportion equation
   3,971,506 : 8,572,880 = 8,572,880 : x
2. Step 2: Convert to fraction form
   3,971,506/8,572,880 = 8,572,880/x
3. Step 3: Cross multiply
   3,971,506x = 8,572,880 × 8,572,880
4. Step 4: Simplify right side
   3,971,506x = 73,494,271,494,400
5. Step 5: Solve for x
   x = 73,494,271,494,400/3,971,506
6. Step 6: Final answer
   x = 18,505,391.03