Finding the Third Proportional to 4,257,222 and 6,430,056

Step by Step Solution

1. Step 1: Write the proportion equation
   4,257,222 : 6,430,056 = 6,430,056 : x
2. Step 2: Convert to fraction form
   4,257,222/6,430,056 = 6,430,056/x
3. Step 3: Cross multiply
   4,257,222x = 6,430,056 × 6,430,056
4. Step 4: Simplify right side
   4,257,222x = 41,345,620,163,136
5. Step 5: Solve for x
   x = 41,345,620,163,136/4,257,222
6. Step 6: Final answer
   x = 9,711,877.88