Finding the Third Proportional to 169,929,199.69 and 262,400,408.72

Step by Step Solution

1. Step 1: Write the proportion equation
   169,929,199.69 : 262,400,408.72 = 262,400,408.72 : x
2. Step 2: Convert to fraction form
   169,929,199.69/262,400,408.72 = 262,400,408.72/x
3. Step 3: Cross multiply
   169,929,199.69x = 262,400,408.72 × 262,400,408.72
4. Step 4: Simplify right side
   169,929,199.69x = 68,853,974,495,767,048
5. Step 5: Solve for x
   x = 68,853,974,495,767,048/169,929,199.69
6. Step 6: Final answer
   x = 405,192,130.74