Finding the Third Proportional to 5,664,624 and 8,543,960

Step by Step Solution

1. Step 1: Write the proportion equation
   5,664,624 : 8,543,960 = 8,543,960 : x
2. Step 2: Convert to fraction form
   5,664,624/8,543,960 = 8,543,960/x
3. Step 3: Cross multiply
   5,664,624x = 8,543,960 × 8,543,960
4. Step 4: Simplify right side
   5,664,624x = 72,999,252,481,600
5. Step 5: Solve for x
   x = 72,999,252,481,600/5,664,624
6. Step 6: Final answer
   x = 12,886,866.36