Finding the Third Proportional to 1,357,442 and 2,680,620

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357,442 : 2,680,620 = 2,680,620 : x
2. Step 2: Convert to fraction form
   1,357,442/2,680,620 = 2,680,620/x
3. Step 3: Cross multiply
   1,357,442x = 2,680,620 × 2,680,620
4. Step 4: Simplify right side
   1,357,442x = 7,185,723,584,400
5. Step 5: Solve for x
   x = 7,185,723,584,400/1,357,442
6. Step 6: Final answer
   x = 5,293,576.88