Finding the Third Proportional to 149,811.50 and 210,722

Step by Step Solution

1. Step 1: Write the proportion equation
   149,811.50 : 210,722 = 210,722 : x
2. Step 2: Convert to fraction form
   149,811.50/210,722 = 210,722/x
3. Step 3: Cross multiply
   149,811.50x = 210,722 × 210,722
4. Step 4: Simplify right side
   149,811.50x = 44,403,761,284
5. Step 5: Solve for x
   x = 44,403,761,284/149,811.50
6. Step 6: Final answer
   x = 296,397.55