Finding the Third Proportional to 336,117 and 520,700.50

Step by Step Solution

1. Step 1: Write the proportion equation
   336,117 : 520,700.50 = 520,700.50 : x
2. Step 2: Convert to fraction form
   336,117/520,700.50 = 520,700.50/x
3. Step 3: Cross multiply
   336,117x = 520,700.50 × 520,700.50
4. Step 4: Simplify right side
   336,117x = 271,129,010,700.25
5. Step 5: Solve for x
   x = 271,129,010,700.25/336,117
6. Step 6: Final answer
   x = 806,650.69