Finding the Third Proportional to 210,888 and 460,688

Step by Step Solution

1. Step 1: Write the proportion equation
   210,888 : 460,688 = 460,688 : x
2. Step 2: Convert to fraction form
   210,888/460,688 = 460,688/x
3. Step 3: Cross multiply
   210,888x = 460,688 × 460,688
4. Step 4: Simplify right side
   210,888x = 212,233,433,344
5. Step 5: Solve for x
   x = 212,233,433,344/210,888
6. Step 6: Final answer
   x = 1,006,379.85