Finding the Third Proportional to 238,975.50 and 521,427

Step by Step Solution

1. Step 1: Write the proportion equation
   238,975.50 : 521,427 = 521,427 : x
2. Step 2: Convert to fraction form
   238,975.50/521,427 = 521,427/x
3. Step 3: Cross multiply
   238,975.50x = 521,427 × 521,427
4. Step 4: Simplify right side
   238,975.50x = 271,886,116,329
5. Step 5: Solve for x
   x = 271,886,116,329/238,975.50
6. Step 6: Final answer
   x = 1,137,715.44