Finding the Third Proportional to 12,353,046 and 17,820,899

Step by Step Solution

1. Step 1: Write the proportion equation
   12,353,046 : 17,820,899 = 17,820,899 : x
2. Step 2: Convert to fraction form
   12,353,046/17,820,899 = 17,820,899/x
3. Step 3: Cross multiply
   12,353,046x = 17,820,899 × 17,820,899
4. Step 4: Simplify right side
   12,353,046x = 317,584,441,168,201
5. Step 5: Solve for x
   x = 317,584,441,168,201/12,353,046
6. Step 6: Final answer
   x = 25,708,998.51