Finding the Third Proportional to 3,979,457 and 8,526,724

Step by Step Solution

1. Step 1: Write the proportion equation
   3,979,457 : 8,526,724 = 8,526,724 : x
2. Step 2: Convert to fraction form
   3,979,457/8,526,724 = 8,526,724/x
3. Step 3: Cross multiply
   3,979,457x = 8,526,724 × 8,526,724
4. Step 4: Simplify right side
   3,979,457x = 72,705,022,172,176
5. Step 5: Solve for x
   x = 72,705,022,172,176/3,979,457
6. Step 6: Final answer
   x = 18,270,086.14