Finding the Third Proportional to 13,085,820 and 19,864,174

Step by Step Solution

1. Step 1: Write the proportion equation
   13,085,820 : 19,864,174 = 19,864,174 : x
2. Step 2: Convert to fraction form
   13,085,820/19,864,174 = 19,864,174/x
3. Step 3: Cross multiply
   13,085,820x = 19,864,174 × 19,864,174
4. Step 4: Simplify right side
   13,085,820x = 394,585,408,702,276
5. Step 5: Solve for x
   x = 394,585,408,702,276/13,085,820
6. Step 6: Final answer
   x = 30,153,663.18