Finding the Third Proportional to 136,849.50 and 300,672

Step by Step Solution

1. Step 1: Write the proportion equation
   136,849.50 : 300,672 = 300,672 : x
2. Step 2: Convert to fraction form
   136,849.50/300,672 = 300,672/x
3. Step 3: Cross multiply
   136,849.50x = 300,672 × 300,672
4. Step 4: Simplify right side
   136,849.50x = 90,403,651,584
5. Step 5: Solve for x
   x = 90,403,651,584/136,849.50
6. Step 6: Final answer
   x = 660,606.37