Finding the Third Proportional to 148,257 and 326,031.75

Step by Step Solution

1. Step 1: Write the proportion equation
   148,257 : 326,031.75 = 326,031.75 : x
2. Step 2: Convert to fraction form
   148,257/326,031.75 = 326,031.75/x
3. Step 3: Cross multiply
   148,257x = 326,031.75 × 326,031.75
4. Step 4: Simplify right side
   148,257x = 106,296,702,008.06
5. Step 5: Solve for x
   x = 106,296,702,008.06/148,257
6. Step 6: Final answer
   x = 716,975.94