Finding the Third Proportional to 666,684 and 1,016,428

Step by Step Solution

1. Step 1: Write the proportion equation
   666,684 : 1,016,428 = 1,016,428 : x
2. Step 2: Convert to fraction form
   666,684/1,016,428 = 1,016,428/x
3. Step 3: Cross multiply
   666,684x = 1,016,428 × 1,016,428
4. Step 4: Simplify right side
   666,684x = 1,033,125,879,184
5. Step 5: Solve for x
   x = 1,033,125,879,184/666,684
6. Step 6: Final answer
   x = 1,549,648.53