Finding the Third Proportional to 316,658.50 and 473,406

Step by Step Solution

1. Step 1: Write the proportion equation
   316,658.50 : 473,406 = 473,406 : x
2. Step 2: Convert to fraction form
   316,658.50/473,406 = 473,406/x
3. Step 3: Cross multiply
   316,658.50x = 473,406 × 473,406
4. Step 4: Simplify right side
   316,658.50x = 224,113,240,836
5. Step 5: Solve for x
   x = 224,113,240,836/316,658.50
6. Step 6: Final answer
   x = 707,744.28