Finding the Third Proportional to 168,531 and 357,838.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,531 : 357,838.50 = 357,838.50 : x
2. Step 2: Convert to fraction form
   168,531/357,838.50 = 357,838.50/x
3. Step 3: Cross multiply
   168,531x = 357,838.50 × 357,838.50
4. Step 4: Simplify right side
   168,531x = 128,048,392,082.25
5. Step 5: Solve for x
   x = 128,048,392,082.25/168,531
6. Step 6: Final answer
   x = 759,791.33