Finding the Third Proportional to 65,407.50 and 141,271.88

Step by Step Solution

1. Step 1: Write the proportion equation
   65,407.50 : 141,271.88 = 141,271.88 : x
2. Step 2: Convert to fraction form
   65,407.50/141,271.88 = 141,271.88/x
3. Step 3: Cross multiply
   65,407.50x = 141,271.88 × 141,271.88
4. Step 4: Simplify right side
   65,407.50x = 19,957,742,666.02
5. Step 5: Solve for x
   x = 19,957,742,666.02/65,407.50
6. Step 6: Final answer
   x = 305,129.27