Finding the Third Proportional to 328,971 and 492,127.50

Step by Step Solution

1. Step 1: Write the proportion equation
   328,971 : 492,127.50 = 492,127.50 : x
2. Step 2: Convert to fraction form
   328,971/492,127.50 = 492,127.50/x
3. Step 3: Cross multiply
   328,971x = 492,127.50 × 492,127.50
4. Step 4: Simplify right side
   328,971x = 242,189,476,256.25
5. Step 5: Solve for x
   x = 242,189,476,256.25/328,971
6. Step 6: Final answer
   x = 736,203.12