Finding the Third Proportional to 13,263,018 and 21,090,180

Step by Step Solution

1. Step 1: Write the proportion equation
   13,263,018 : 21,090,180 = 21,090,180 : x
2. Step 2: Convert to fraction form
   13,263,018/21,090,180 = 21,090,180/x
3. Step 3: Cross multiply
   13,263,018x = 21,090,180 × 21,090,180
4. Step 4: Simplify right side
   13,263,018x = 444,795,692,432,400
5. Step 5: Solve for x
   x = 444,795,692,432,400/13,263,018
6. Step 6: Final answer
   x = 33,536,536.89