Finding the Third Proportional to 194,405.63 and 317,448

Step by Step Solution

1. Step 1: Write the proportion equation
   194,405.63 : 317,448 = 317,448 : x
2. Step 2: Convert to fraction form
   194,405.63/317,448 = 317,448/x
3. Step 3: Cross multiply
   194,405.63x = 317,448 × 317,448
4. Step 4: Simplify right side
   194,405.63x = 100,773,232,704
5. Step 5: Solve for x
   x = 100,773,232,704/194,405.63
6. Step 6: Final answer
   x = 518,365.83