Finding the Third Proportional to 236,881 and 312,985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,881 : 312,985.50 = 312,985.50 : x
2. Step 2: Convert to fraction form
   236,881/312,985.50 = 312,985.50/x
3. Step 3: Cross multiply
   236,881x = 312,985.50 × 312,985.50
4. Step 4: Simplify right side
   236,881x = 97,959,923,210.25
5. Step 5: Solve for x
   x = 97,959,923,210.25/236,881
6. Step 6: Final answer
   x = 413,540.65