Finding the Third Proportional to 136,809 and 293,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   136,809 : 293,989.50 = 293,989.50 : x
2. Step 2: Convert to fraction form
   136,809/293,989.50 = 293,989.50/x
3. Step 3: Cross multiply
   136,809x = 293,989.50 × 293,989.50
4. Step 4: Simplify right side
   136,809x = 86,429,826,110.25
5. Step 5: Solve for x
   x = 86,429,826,110.25/136,809
6. Step 6: Final answer
   x = 631,755.41