Finding the Third Proportional to 12,856,334 and 19,450,389

Step by Step Solution

1. Step 1: Write the proportion equation
   12,856,334 : 19,450,389 = 19,450,389 : x
2. Step 2: Convert to fraction form
   12,856,334/19,450,389 = 19,450,389/x
3. Step 3: Cross multiply
   12,856,334x = 19,450,389 × 19,450,389
4. Step 4: Simplify right side
   12,856,334x = 378,317,632,251,321
5. Step 5: Solve for x
   x = 378,317,632,251,321/12,856,334
6. Step 6: Final answer
   x = 29,426,555.99