Finding the Third Proportional to 136,437 and 287,012.25

Step by Step Solution

1. Step 1: Write the proportion equation
   136,437 : 287,012.25 = 287,012.25 : x
2. Step 2: Convert to fraction form
   136,437/287,012.25 = 287,012.25/x
3. Step 3: Cross multiply
   136,437x = 287,012.25 × 287,012.25
4. Step 4: Simplify right side
   136,437x = 82,376,031,650.06
5. Step 5: Solve for x
   x = 82,376,031,650.06/136,437
6. Step 6: Final answer
   x = 603,766.07