Finding the Third Proportional to 6,280,440 and 9,961,188

Step by Step Solution

1. Step 1: Write the proportion equation
   6,280,440 : 9,961,188 = 9,961,188 : x
2. Step 2: Convert to fraction form
   6,280,440/9,961,188 = 9,961,188/x
3. Step 3: Cross multiply
   6,280,440x = 9,961,188 × 9,961,188
4. Step 4: Simplify right side
   6,280,440x = 99,225,266,371,344
5. Step 5: Solve for x
   x = 99,225,266,371,344/6,280,440
6. Step 6: Final answer
   x = 15,799,094.71