Finding the Third Proportional to 1,455,312 and 3,061,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,455,312 : 3,061,420 = 3,061,420 : x
2. Step 2: Convert to fraction form
   1,455,312/3,061,420 = 3,061,420/x
3. Step 3: Cross multiply
   1,455,312x = 3,061,420 × 3,061,420
4. Step 4: Simplify right side
   1,455,312x = 9,372,292,416,400
5. Step 5: Solve for x
   x = 9,372,292,416,400/1,455,312
6. Step 6: Final answer
   x = 6,440,057.13