Finding the Third Proportional to 4,287,472 and 8,927,764

Step by Step Solution

1. Step 1: Write the proportion equation
   4,287,472 : 8,927,764 = 8,927,764 : x
2. Step 2: Convert to fraction form
   4,287,472/8,927,764 = 8,927,764/x
3. Step 3: Cross multiply
   4,287,472x = 8,927,764 × 8,927,764
4. Step 4: Simplify right side
   4,287,472x = 79,704,970,039,696
5. Step 5: Solve for x
   x = 79,704,970,039,696/4,287,472
6. Step 6: Final answer
   x = 18,590,201.88