Finding the Third Proportional to 347,172 and 541,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   347,172 : 541,055.50 = 541,055.50 : x
2. Step 2: Convert to fraction form
   347,172/541,055.50 = 541,055.50/x
3. Step 3: Cross multiply
   347,172x = 541,055.50 × 541,055.50
4. Step 4: Simplify right side
   347,172x = 292,741,054,080.25
5. Step 5: Solve for x
   x = 292,741,054,080.25/347,172
6. Step 6: Final answer
   x = 843,216.20