Finding the Third Proportional to 258,871.50 and 556,167

Step by Step Solution

1. Step 1: Write the proportion equation
   258,871.50 : 556,167 = 556,167 : x
2. Step 2: Convert to fraction form
   258,871.50/556,167 = 556,167/x
3. Step 3: Cross multiply
   258,871.50x = 556,167 × 556,167
4. Step 4: Simplify right side
   258,871.50x = 309,321,731,889
5. Step 5: Solve for x
   x = 309,321,731,889/258,871.50
6. Step 6: Final answer
   x = 1,194,885.23