Finding the Third Proportional to 12,587,820 and 18,804,042

Step by Step Solution

1. Step 1: Write the proportion equation
   12,587,820 : 18,804,042 = 18,804,042 : x
2. Step 2: Convert to fraction form
   12,587,820/18,804,042 = 18,804,042/x
3. Step 3: Cross multiply
   12,587,820x = 18,804,042 × 18,804,042
4. Step 4: Simplify right side
   12,587,820x = 353,591,995,537,764
5. Step 5: Solve for x
   x = 353,591,995,537,764/12,587,820
6. Step 6: Final answer
   x = 28,090,010.47