Finding the Third Proportional to 12,613,485 and 19,487,633

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613,485 : 19,487,633 = 19,487,633 : x
2. Step 2: Convert to fraction form
   12,613,485/19,487,633 = 19,487,633/x
3. Step 3: Cross multiply
   12,613,485x = 19,487,633 × 19,487,633
4. Step 4: Simplify right side
   12,613,485x = 379,767,839,942,689
5. Step 5: Solve for x
   x = 379,767,839,942,689/12,613,485
6. Step 6: Final answer
   x = 30,108,081.94