Finding the Third Proportional to 358,960.50 and 555,748.88

Step by Step Solution

1. Step 1: Write the proportion equation
   358,960.50 : 555,748.88 = 555,748.88 : x
2. Step 2: Convert to fraction form
   358,960.50/555,748.88 = 555,748.88/x
3. Step 3: Cross multiply
   358,960.50x = 555,748.88 × 555,748.88
4. Step 4: Simplify right side
   358,960.50x = 308,856,812,063.77
5. Step 5: Solve for x
   x = 308,856,812,063.77/358,960.50
6. Step 6: Final answer
   x = 860,420.05