Finding the Third Proportional to 1,209,130 and 2,639,308

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,130 : 2,639,308 = 2,639,308 : x
2. Step 2: Convert to fraction form
   1,209,130/2,639,308 = 2,639,308/x
3. Step 3: Cross multiply
   1,209,130x = 2,639,308 × 2,639,308
4. Step 4: Simplify right side
   1,209,130x = 6,965,946,718,864
5. Step 5: Solve for x
   x = 6,965,946,718,864/1,209,130
6. Step 6: Final answer
   x = 5,761,123.05