Finding the Third Proportional to 357,081 and 473,899.50

Step by Step Solution

1. Step 1: Write the proportion equation
   357,081 : 473,899.50 = 473,899.50 : x
2. Step 2: Convert to fraction form
   357,081/473,899.50 = 473,899.50/x
3. Step 3: Cross multiply
   357,081x = 473,899.50 × 473,899.50
4. Step 4: Simplify right side
   357,081x = 224,580,736,100.25
5. Step 5: Solve for x
   x = 224,580,736,100.25/357,081
6. Step 6: Final answer
   x = 628,934.99