Finding the Third Proportional to 58,471.50 and 136,644

Step by Step Solution

1. Step 1: Write the proportion equation
   58,471.50 : 136,644 = 136,644 : x
2. Step 2: Convert to fraction form
   58,471.50/136,644 = 136,644/x
3. Step 3: Cross multiply
   58,471.50x = 136,644 × 136,644
4. Step 4: Simplify right side
   58,471.50x = 18,671,582,736
5. Step 5: Solve for x
   x = 18,671,582,736/58,471.50
6. Step 6: Final answer
   x = 319,327.92