Finding the Third Proportional to 1,521,396.42 and 3,212,558.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521,396.42 : 3,212,558.72 = 3,212,558.72 : x
2. Step 2: Convert to fraction form
   1,521,396.42/3,212,558.72 = 3,212,558.72/x
3. Step 3: Cross multiply
   1,521,396.42x = 3,212,558.72 × 3,212,558.72
4. Step 4: Simplify right side
   1,521,396.42x = 10,320,533,521,416.64
5. Step 5: Solve for x
   x = 10,320,533,521,416.64/1,521,396.42
6. Step 6: Final answer
   x = 6,783,592.61