Finding the Third Proportional to 787,580 and 1,683,120

Step by Step Solution

1. Step 1: Write the proportion equation
   787,580 : 1,683,120 = 1,683,120 : x
2. Step 2: Convert to fraction form
   787,580/1,683,120 = 1,683,120/x
3. Step 3: Cross multiply
   787,580x = 1,683,120 × 1,683,120
4. Step 4: Simplify right side
   787,580x = 2,832,892,934,400
5. Step 5: Solve for x
   x = 2,832,892,934,400/787,580
6. Step 6: Final answer
   x = 3,596,958.96