Finding the Third Proportional to 665,145 and 1,459,066.50

Step by Step Solution

1. Step 1: Write the proportion equation
   665,145 : 1,459,066.50 = 1,459,066.50 : x
2. Step 2: Convert to fraction form
   665,145/1,459,066.50 = 1,459,066.50/x
3. Step 3: Cross multiply
   665,145x = 1,459,066.50 × 1,459,066.50
4. Step 4: Simplify right side
   665,145x = 2,128,875,051,422.25
5. Step 5: Solve for x
   x = 2,128,875,051,422.25/665,145
6. Step 6: Final answer
   x = 3,200,617.99