Finding the Third Proportional to 4,245,570 and 8,970,340

Step by Step Solution

1. Step 1: Write the proportion equation
   4,245,570 : 8,970,340 = 8,970,340 : x
2. Step 2: Convert to fraction form
   4,245,570/8,970,340 = 8,970,340/x
3. Step 3: Cross multiply
   4,245,570x = 8,970,340 × 8,970,340
4. Step 4: Simplify right side
   4,245,570x = 80,466,999,715,600
5. Step 5: Solve for x
   x = 80,466,999,715,600/4,245,570
6. Step 6: Final answer
   x = 18,953,167.59