Finding the Third Proportional to 136,498.50 and 209,094.75

Step by Step Solution

1. Step 1: Write the proportion equation
   136,498.50 : 209,094.75 = 209,094.75 : x
2. Step 2: Convert to fraction form
   136,498.50/209,094.75 = 209,094.75/x
3. Step 3: Cross multiply
   136,498.50x = 209,094.75 × 209,094.75
4. Step 4: Simplify right side
   136,498.50x = 43,720,614,477.56
5. Step 5: Solve for x
   x = 43,720,614,477.56/136,498.50
6. Step 6: Final answer
   x = 320,301.06