Finding the Third Proportional to 8,145,640 and 12,077,513

Step by Step Solution

1. Step 1: Write the proportion equation
   8,145,640 : 12,077,513 = 12,077,513 : x
2. Step 2: Convert to fraction form
   8,145,640/12,077,513 = 12,077,513/x
3. Step 3: Cross multiply
   8,145,640x = 12,077,513 × 12,077,513
4. Step 4: Simplify right side
   8,145,640x = 145,866,320,265,169
5. Step 5: Solve for x
   x = 145,866,320,265,169/8,145,640
6. Step 6: Final answer
   x = 17,907,287.86