Finding the Third Proportional to 8,485,726 and 13,136,708

Step by Step Solution

1. Step 1: Write the proportion equation
   8,485,726 : 13,136,708 = 13,136,708 : x
2. Step 2: Convert to fraction form
   8,485,726/13,136,708 = 13,136,708/x
3. Step 3: Cross multiply
   8,485,726x = 13,136,708 × 13,136,708
4. Step 4: Simplify right side
   8,485,726x = 172,573,097,077,264
5. Step 5: Solve for x
   x = 172,573,097,077,264/8,485,726
6. Step 6: Final answer
   x = 20,336,868.89