Finding the Third Proportional to 581,390 and 1,251,820

Step by Step Solution

1. Step 1: Write the proportion equation
   581,390 : 1,251,820 = 1,251,820 : x
2. Step 2: Convert to fraction form
   581,390/1,251,820 = 1,251,820/x
3. Step 3: Cross multiply
   581,390x = 1,251,820 × 1,251,820
4. Step 4: Simplify right side
   581,390x = 1,567,053,312,400
5. Step 5: Solve for x
   x = 1,567,053,312,400/581,390
6. Step 6: Final answer
   x = 2,695,356.49