Finding the Third Proportional to 310,095 and 657,085.50

Step by Step Solution

1. Step 1: Write the proportion equation
   310,095 : 657,085.50 = 657,085.50 : x
2. Step 2: Convert to fraction form
   310,095/657,085.50 = 657,085.50/x
3. Step 3: Cross multiply
   310,095x = 657,085.50 × 657,085.50
4. Step 4: Simplify right side
   310,095x = 431,761,354,310.25
5. Step 5: Solve for x
   x = 431,761,354,310.25/310,095
6. Step 6: Final answer
   x = 1,392,351.87