Finding the Third Proportional to 153,117 and 239,293.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,117 : 239,293.50 = 239,293.50 : x
2. Step 2: Convert to fraction form
   153,117/239,293.50 = 239,293.50/x
3. Step 3: Cross multiply
   153,117x = 239,293.50 × 239,293.50
4. Step 4: Simplify right side
   153,117x = 57,261,379,142.25
5. Step 5: Solve for x
   x = 57,261,379,142.25/153,117
6. Step 6: Final answer
   x = 373,971.40