Finding the Third Proportional to 286,065 and 400,126.50

Step by Step Solution

1. Step 1: Write the proportion equation
   286,065 : 400,126.50 = 400,126.50 : x
2. Step 2: Convert to fraction form
   286,065/400,126.50 = 400,126.50/x
3. Step 3: Cross multiply
   286,065x = 400,126.50 × 400,126.50
4. Step 4: Simplify right side
   286,065x = 160,101,216,002.25
5. Step 5: Solve for x
   x = 160,101,216,002.25/286,065
6. Step 6: Final answer
   x = 559,667.26