Finding the Third Proportional to 236,385 and 354,820.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,385 : 354,820.50 = 354,820.50 : x
2. Step 2: Convert to fraction form
   236,385/354,820.50 = 354,820.50/x
3. Step 3: Cross multiply
   236,385x = 354,820.50 × 354,820.50
4. Step 4: Simplify right side
   236,385x = 125,897,587,220.25
5. Step 5: Solve for x
   x = 125,897,587,220.25/236,385
6. Step 6: Final answer
   x = 532,595.50