Finding the Third Proportional to 406,103 and 631,303.25

Step by Step Solution

1. Step 1: Write the proportion equation
   406,103 : 631,303.25 = 631,303.25 : x
2. Step 2: Convert to fraction form
   406,103/631,303.25 = 631,303.25/x
3. Step 3: Cross multiply
   406,103x = 631,303.25 × 631,303.25
4. Step 4: Simplify right side
   406,103x = 398,543,793,460.56
5. Step 5: Solve for x
   x = 398,543,793,460.56/406,103
6. Step 6: Final answer
   x = 981,385.99