Finding the Third Proportional to 12,968,024 and 20,342,280

Step by Step Solution

1. Step 1: Write the proportion equation
   12,968,024 : 20,342,280 = 20,342,280 : x
2. Step 2: Convert to fraction form
   12,968,024/20,342,280 = 20,342,280/x
3. Step 3: Cross multiply
   12,968,024x = 20,342,280 × 20,342,280
4. Step 4: Simplify right side
   12,968,024x = 413,808,355,598,400
5. Step 5: Solve for x
   x = 413,808,355,598,400/12,968,024
6. Step 6: Final answer
   x = 31,909,900.51