Finding the Third Proportional to 784,286 and 1,712,488

Step by Step Solution

1. Step 1: Write the proportion equation
   784,286 : 1,712,488 = 1,712,488 : x
2. Step 2: Convert to fraction form
   784,286/1,712,488 = 1,712,488/x
3. Step 3: Cross multiply
   784,286x = 1,712,488 × 1,712,488
4. Step 4: Simplify right side
   784,286x = 2,932,615,150,144
5. Step 5: Solve for x
   x = 2,932,615,150,144/784,286
6. Step 6: Final answer
   x = 3,739,216.50