Finding the Third Proportional to 1,330,308 and 2,918,138

Step by Step Solution

1. Step 1: Write the proportion equation
   1,330,308 : 2,918,138 = 2,918,138 : x
2. Step 2: Convert to fraction form
   1,330,308/2,918,138 = 2,918,138/x
3. Step 3: Cross multiply
   1,330,308x = 2,918,138 × 2,918,138
4. Step 4: Simplify right side
   1,330,308x = 8,515,529,387,044
5. Step 5: Solve for x
   x = 8,515,529,387,044/1,330,308
6. Step 6: Final answer
   x = 6,401,171.30