Finding the Third Proportional to 149,711 and 238,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,711 : 238,090.50 = 238,090.50 : x
2. Step 2: Convert to fraction form
   149,711/238,090.50 = 238,090.50/x
3. Step 3: Cross multiply
   149,711x = 238,090.50 × 238,090.50
4. Step 4: Simplify right side
   149,711x = 56,687,086,190.25
5. Step 5: Solve for x
   x = 56,687,086,190.25/149,711
6. Step 6: Final answer
   x = 378,643.43