Finding the Third Proportional to 64,798.50 and 101,430

Step by Step Solution

1. Step 1: Write the proportion equation
   64,798.50 : 101,430 = 101,430 : x
2. Step 2: Convert to fraction form
   64,798.50/101,430 = 101,430/x
3. Step 3: Cross multiply
   64,798.50x = 101,430 × 101,430
4. Step 4: Simplify right side
   64,798.50x = 10,288,044,900
5. Step 5: Solve for x
   x = 10,288,044,900/64,798.50
6. Step 6: Final answer
   x = 158,769.80