Finding the Third Proportional to 693,361 and 1,065,272.50

Step by Step Solution

1. Step 1: Write the proportion equation
   693,361 : 1,065,272.50 = 1,065,272.50 : x
2. Step 2: Convert to fraction form
   693,361/1,065,272.50 = 1,065,272.50/x
3. Step 3: Cross multiply
   693,361x = 1,065,272.50 × 1,065,272.50
4. Step 4: Simplify right side
   693,361x = 1,134,805,499,256.25
5. Step 5: Solve for x
   x = 1,134,805,499,256.25/693,361
6. Step 6: Final answer
   x = 1,636,673.39