Finding the Third Proportional to 64,300.50 and 100,131.75

Step by Step Solution

1. Step 1: Write the proportion equation
   64,300.50 : 100,131.75 = 100,131.75 : x
2. Step 2: Convert to fraction form
   64,300.50/100,131.75 = 100,131.75/x
3. Step 3: Cross multiply
   64,300.50x = 100,131.75 × 100,131.75
4. Step 4: Simplify right side
   64,300.50x = 10,026,367,358.06
5. Step 5: Solve for x
   x = 10,026,367,358.06/64,300.50
6. Step 6: Final answer
   x = 155,929.85