Finding the Third Proportional to 65,056.50 and 100,539.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,056.50 : 100,539.50 = 100,539.50 : x
2. Step 2: Convert to fraction form
   65,056.50/100,539.50 = 100,539.50/x
3. Step 3: Cross multiply
   65,056.50x = 100,539.50 × 100,539.50
4. Step 4: Simplify right side
   65,056.50x = 10,108,191,060.25
5. Step 5: Solve for x
   x = 10,108,191,060.25/65,056.50
6. Step 6: Final answer
   x = 155,375.57