Finding the Third Proportional to 130,640 and 195,451.50

Step by Step Solution

1. Step 1: Write the proportion equation
   130,640 : 195,451.50 = 195,451.50 : x
2. Step 2: Convert to fraction form
   130,640/195,451.50 = 195,451.50/x
3. Step 3: Cross multiply
   130,640x = 195,451.50 × 195,451.50
4. Step 4: Simplify right side
   130,640x = 38,201,288,852.25
5. Step 5: Solve for x
   x = 38,201,288,852.25/130,640
6. Step 6: Final answer
   x = 292,416.48