Finding the Third Proportional to 12,820,410 and 19,824,588

Step by Step Solution

1. Step 1: Write the proportion equation
   12,820,410 : 19,824,588 = 19,824,588 : x
2. Step 2: Convert to fraction form
   12,820,410/19,824,588 = 19,824,588/x
3. Step 3: Cross multiply
   12,820,410x = 19,824,588 × 19,824,588
4. Step 4: Simplify right side
   12,820,410x = 393,014,289,369,744
5. Step 5: Solve for x
   x = 393,014,289,369,744/12,820,410
6. Step 6: Final answer
   x = 30,655,360.43