Finding the Third Proportional to 473,494.50 and 637,947

Step by Step Solution

1. Step 1: Write the proportion equation
   473,494.50 : 637,947 = 637,947 : x
2. Step 2: Convert to fraction form
   473,494.50/637,947 = 637,947/x
3. Step 3: Cross multiply
   473,494.50x = 637,947 × 637,947
4. Step 4: Simplify right side
   473,494.50x = 406,976,374,809
5. Step 5: Solve for x
   x = 406,976,374,809/473,494.50
6. Step 6: Final answer
   x = 859,516.58