Finding the Third Proportional to 790,288 and 1,225,536

Step by Step Solution

1. Step 1: Write the proportion equation
   790,288 : 1,225,536 = 1,225,536 : x
2. Step 2: Convert to fraction form
   790,288/1,225,536 = 1,225,536/x
3. Step 3: Cross multiply
   790,288x = 1,225,536 × 1,225,536
4. Step 4: Simplify right side
   790,288x = 1,501,938,487,296
5. Step 5: Solve for x
   x = 1,501,938,487,296/790,288
6. Step 6: Final answer
   x = 1,900,495.12