Finding the Third Proportional to 5,664,564 and 8,543,853

Step by Step Solution

1. Step 1: Write the proportion equation
   5,664,564 : 8,543,853 = 8,543,853 : x
2. Step 2: Convert to fraction form
   5,664,564/8,543,853 = 8,543,853/x
3. Step 3: Cross multiply
   5,664,564x = 8,543,853 × 8,543,853
4. Step 4: Simplify right side
   5,664,564x = 72,997,424,085,609
5. Step 5: Solve for x
   x = 72,997,424,085,609/5,664,564
6. Step 6: Final answer
   x = 12,886,680.08