Finding the Third Proportional to 136,785 and 210,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   136,785 : 210,118.50 = 210,118.50 : x
2. Step 2: Convert to fraction form
   136,785/210,118.50 = 210,118.50/x
3. Step 3: Cross multiply
   136,785x = 210,118.50 × 210,118.50
4. Step 4: Simplify right side
   136,785x = 44,149,784,042.25
5. Step 5: Solve for x
   x = 44,149,784,042.25/136,785
6. Step 6: Final answer
   x = 322,767.73