Finding the Third Proportional to 5,397,258 and 12,741,090

Step by Step Solution

1. Step 1: Write the proportion equation
   5,397,258 : 12,741,090 = 12,741,090 : x
2. Step 2: Convert to fraction form
   5,397,258/12,741,090 = 12,741,090/x
3. Step 3: Cross multiply
   5,397,258x = 12,741,090 × 12,741,090
4. Step 4: Simplify right side
   5,397,258x = 162,335,374,388,100
5. Step 5: Solve for x
   x = 162,335,374,388,100/5,397,258
6. Step 6: Final answer
   x = 30,077,378.99