Finding the Third Proportional to 5,137,850 and 8,000,859

Step by Step Solution

1. Step 1: Write the proportion equation
   5,137,850 : 8,000,859 = 8,000,859 : x
2. Step 2: Convert to fraction form
   5,137,850/8,000,859 = 8,000,859/x
3. Step 3: Cross multiply
   5,137,850x = 8,000,859 × 8,000,859
4. Step 4: Simplify right side
   5,137,850x = 64,013,744,737,881
5. Step 5: Solve for x
   x = 64,013,744,737,881/5,137,850
6. Step 6: Final answer
   x = 12,459,247.49