Finding the Third Proportional to 12,856,640 and 17,460,912

Step by Step Solution

1. Step 1: Write the proportion equation
   12,856,640 : 17,460,912 = 17,460,912 : x
2. Step 2: Convert to fraction form
   12,856,640/17,460,912 = 17,460,912/x
3. Step 3: Cross multiply
   12,856,640x = 17,460,912 × 17,460,912
4. Step 4: Simplify right side
   12,856,640x = 304,883,447,871,744
5. Step 5: Solve for x
   x = 304,883,447,871,744/12,856,640
6. Step 6: Final answer
   x = 23,714,084.54