Finding the Third Proportional to 1,639,274 and 2,531,615

Step by Step Solution

1. Step 1: Write the proportion equation
   1,639,274 : 2,531,615 = 2,531,615 : x
2. Step 2: Convert to fraction form
   1,639,274/2,531,615 = 2,531,615/x
3. Step 3: Cross multiply
   1,639,274x = 2,531,615 × 2,531,615
4. Step 4: Simplify right side
   1,639,274x = 6,409,074,508,225
5. Step 5: Solve for x
   x = 6,409,074,508,225/1,639,274
6. Step 6: Final answer
   x = 3,909,703.02