Finding the Third Proportional to 64,155 and 130,830

Step by Step Solution

1. Step 1: Write the proportion equation
   64,155 : 130,830 = 130,830 : x
2. Step 2: Convert to fraction form
   64,155/130,830 = 130,830/x
3. Step 3: Cross multiply
   64,155x = 130,830 × 130,830
4. Step 4: Simplify right side
   64,155x = 17,116,488,900
5. Step 5: Solve for x
   x = 17,116,488,900/64,155
6. Step 6: Final answer
   x = 266,798.99