Finding the Third Proportional to 72,090 and 147,703.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,090 : 147,703.50 = 147,703.50 : x
2. Step 2: Convert to fraction form
   72,090/147,703.50 = 147,703.50/x
3. Step 3: Cross multiply
   72,090x = 147,703.50 × 147,703.50
4. Step 4: Simplify right side
   72,090x = 21,816,323,912.25
5. Step 5: Solve for x
   x = 21,816,323,912.25/72,090
6. Step 6: Final answer
   x = 302,626.22