Finding the Third Proportional to 12,584,378 and 19,432,906

Step by Step Solution

1. Step 1: Write the proportion equation
   12,584,378 : 19,432,906 = 19,432,906 : x
2. Step 2: Convert to fraction form
   12,584,378/19,432,906 = 19,432,906/x
3. Step 3: Cross multiply
   12,584,378x = 19,432,906 × 19,432,906
4. Step 4: Simplify right side
   12,584,378x = 377,637,835,604,836
5. Step 5: Solve for x
   x = 377,637,835,604,836/12,584,378
6. Step 6: Final answer
   x = 30,008,462.52