Finding the Third Proportional to 5,664,577 and 8,543,897

Step by Step Solution

1. Step 1: Write the proportion equation
   5,664,577 : 8,543,897 = 8,543,897 : x
2. Step 2: Convert to fraction form
   5,664,577/8,543,897 = 8,543,897/x
3. Step 3: Cross multiply
   5,664,577x = 8,543,897 × 8,543,897
4. Step 4: Simplify right side
   5,664,577x = 72,998,175,946,609
5. Step 5: Solve for x
   x = 72,998,175,946,609/5,664,577
6. Step 6: Final answer
   x = 12,886,783.24