Finding the Third Proportional to 187,698 and 442,890

Step by Step Solution

1. Step 1: Write the proportion equation
   187,698 : 442,890 = 442,890 : x
2. Step 2: Convert to fraction form
   187,698/442,890 = 442,890/x
3. Step 3: Cross multiply
   187,698x = 442,890 × 442,890
4. Step 4: Simplify right side
   187,698x = 196,151,552,100
5. Step 5: Solve for x
   x = 196,151,552,100/187,698
6. Step 6: Final answer
   x = 1,045,038.05