Finding the Third Proportional to 307,526 and 665,595.50

Step by Step Solution

1. Step 1: Write the proportion equation
   307,526 : 665,595.50 = 665,595.50 : x
2. Step 2: Convert to fraction form
   307,526/665,595.50 = 665,595.50/x
3. Step 3: Cross multiply
   307,526x = 665,595.50 × 665,595.50
4. Step 4: Simplify right side
   307,526x = 443,017,369,620.25
5. Step 5: Solve for x
   x = 443,017,369,620.25/307,526
6. Step 6: Final answer
   x = 1,440,585.09