Finding the Third Proportional to 4,287,476 and 8,927,772

Step by Step Solution

1. Step 1: Write the proportion equation
   4,287,476 : 8,927,772 = 8,927,772 : x
2. Step 2: Convert to fraction form
   4,287,476/8,927,772 = 8,927,772/x
3. Step 3: Cross multiply
   4,287,476x = 8,927,772 × 8,927,772
4. Step 4: Simplify right side
   4,287,476x = 79,705,112,883,984
5. Step 5: Solve for x
   x = 79,705,112,883,984/4,287,476
6. Step 6: Final answer
   x = 18,590,217.85