Finding the Third Proportional to 153,987 and 238,331.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,987 : 238,331.50 = 238,331.50 : x
2. Step 2: Convert to fraction form
   153,987/238,331.50 = 238,331.50/x
3. Step 3: Cross multiply
   153,987x = 238,331.50 × 238,331.50
4. Step 4: Simplify right side
   153,987x = 56,801,903,892.25
5. Step 5: Solve for x
   x = 56,801,903,892.25/153,987
6. Step 6: Final answer
   x = 368,874.67