Finding the Third Proportional to 1,639,272 and 2,531,612

Step by Step Solution

1. Step 1: Write the proportion equation
   1,639,272 : 2,531,612 = 2,531,612 : x
2. Step 2: Convert to fraction form
   1,639,272/2,531,612 = 2,531,612/x
3. Step 3: Cross multiply
   1,639,272x = 2,531,612 × 2,531,612
4. Step 4: Simplify right side
   1,639,272x = 6,409,059,318,544
5. Step 5: Solve for x
   x = 6,409,059,318,544/1,639,272
6. Step 6: Final answer
   x = 3,909,698.52