Finding the Third Proportional to 64,308 and 100,143

Step by Step Solution

1. Step 1: Write the proportion equation
   64,308 : 100,143 = 100,143 : x
2. Step 2: Convert to fraction form
   64,308/100,143 = 100,143/x
3. Step 3: Cross multiply
   64,308x = 100,143 × 100,143
4. Step 4: Simplify right side
   64,308x = 10,028,620,449
5. Step 5: Solve for x
   x = 10,028,620,449/64,308
6. Step 6: Final answer
   x = 155,946.70