Finding the Third Proportional to 254,370 and 393,522.50

Step by Step Solution

1. Step 1: Write the proportion equation
   254,370 : 393,522.50 = 393,522.50 : x
2. Step 2: Convert to fraction form
   254,370/393,522.50 = 393,522.50/x
3. Step 3: Cross multiply
   254,370x = 393,522.50 × 393,522.50
4. Step 4: Simplify right side
   254,370x = 154,859,958,006.25
5. Step 5: Solve for x
   x = 154,859,958,006.25/254,370
6. Step 6: Final answer
   x = 608,798.04