Finding the Third Proportional to 238,999.50 and 520,146

Step by Step Solution

1. Step 1: Write the proportion equation
   238,999.50 : 520,146 = 520,146 : x
2. Step 2: Convert to fraction form
   238,999.50/520,146 = 520,146/x
3. Step 3: Cross multiply
   238,999.50x = 520,146 × 520,146
4. Step 4: Simplify right side
   238,999.50x = 270,551,861,316
5. Step 5: Solve for x
   x = 270,551,861,316/238,999.50
6. Step 6: Final answer
   x = 1,132,018.52