Finding the Third Proportional to 596,972 and 1,290,172

Step by Step Solution

1. Step 1: Write the proportion equation
   596,972 : 1,290,172 = 1,290,172 : x
2. Step 2: Convert to fraction form
   596,972/1,290,172 = 1,290,172/x
3. Step 3: Cross multiply
   596,972x = 1,290,172 × 1,290,172
4. Step 4: Simplify right side
   596,972x = 1,664,543,789,584
5. Step 5: Solve for x
   x = 1,664,543,789,584/596,972
6. Step 6: Final answer
   x = 2,788,311.33