Finding the Third Proportional to 118,552 and 210,789

Step by Step Solution

1. Step 1: Write the proportion equation
   118,552 : 210,789 = 210,789 : x
2. Step 2: Convert to fraction form
   118,552/210,789 = 210,789/x
3. Step 3: Cross multiply
   118,552x = 210,789 × 210,789
4. Step 4: Simplify right side
   118,552x = 44,432,002,521
5. Step 5: Solve for x
   x = 44,432,002,521/118,552
6. Step 6: Final answer
   x = 374,789.14