Finding the Third Proportional to 172,145.25 and 364,748.06

Step by Step Solution

1. Step 1: Write the proportion equation
   172,145.25 : 364,748.06 = 364,748.06 : x
2. Step 2: Convert to fraction form
   172,145.25/364,748.06 = 364,748.06/x
3. Step 3: Cross multiply
   172,145.25x = 364,748.06 × 364,748.06
4. Step 4: Simplify right side
   172,145.25x = 133,041,149,097.50
5. Step 5: Solve for x
   x = 133,041,149,097.50/172,145.25
6. Step 6: Final answer
   x = 772,842.41