Finding the Third Proportional to 684,090 and 1,499,520

Step by Step Solution

1. Step 1: Write the proportion equation
   684,090 : 1,499,520 = 1,499,520 : x
2. Step 2: Convert to fraction form
   684,090/1,499,520 = 1,499,520/x
3. Step 3: Cross multiply
   684,090x = 1,499,520 × 1,499,520
4. Step 4: Simplify right side
   684,090x = 2,248,560,230,400
5. Step 5: Solve for x
   x = 2,248,560,230,400/684,090
6. Step 6: Final answer
   x = 3,286,936.27