Finding the Third Proportional to 646,572.38 and 1,405,066.50

Step by Step Solution

1. Step 1: Write the proportion equation
   646,572.38 : 1,405,066.50 = 1,405,066.50 : x
2. Step 2: Convert to fraction form
   646,572.38/1,405,066.50 = 1,405,066.50/x
3. Step 3: Cross multiply
   646,572.38x = 1,405,066.50 × 1,405,066.50
4. Step 4: Simplify right side
   646,572.38x = 1,974,211,869,422.25
5. Step 5: Solve for x
   x = 1,974,211,869,422.25/646,572.38
6. Step 6: Final answer
   x = 3,053,350.17