Finding the Third Proportional to 4,287,414 and 8,927,664

Step by Step Solution

1. Step 1: Write the proportion equation
   4,287,414 : 8,927,664 = 8,927,664 : x
2. Step 2: Convert to fraction form
   4,287,414/8,927,664 = 8,927,664/x
3. Step 3: Cross multiply
   4,287,414x = 8,927,664 × 8,927,664
4. Step 4: Simplify right side
   4,287,414x = 79,703,184,496,896
5. Step 5: Solve for x
   x = 79,703,184,496,896/4,287,414
6. Step 6: Final answer
   x = 18,590,036.91