Finding the Third Proportional to 173,889 and 366,457.50

Step by Step Solution

1. Step 1: Write the proportion equation
   173,889 : 366,457.50 = 366,457.50 : x
2. Step 2: Convert to fraction form
   173,889/366,457.50 = 366,457.50/x
3. Step 3: Cross multiply
   173,889x = 366,457.50 × 366,457.50
4. Step 4: Simplify right side
   173,889x = 134,291,099,306.25
5. Step 5: Solve for x
   x = 134,291,099,306.25/173,889
6. Step 6: Final answer
   x = 772,280.59