Finding the Third Proportional to 8,057,890 and 12,495,320

Step by Step Solution

1. Step 1: Write the proportion equation
   8,057,890 : 12,495,320 = 12,495,320 : x
2. Step 2: Convert to fraction form
   8,057,890/12,495,320 = 12,495,320/x
3. Step 3: Cross multiply
   8,057,890x = 12,495,320 × 12,495,320
4. Step 4: Simplify right side
   8,057,890x = 156,133,021,902,400
5. Step 5: Solve for x
   x = 156,133,021,902,400/8,057,890
6. Step 6: Final answer
   x = 19,376,415.15