Finding the Third Proportional to 693,738 and 1,406,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   693,738 : 1,406,611.50 = 1,406,611.50 : x
2. Step 2: Convert to fraction form
   693,738/1,406,611.50 = 1,406,611.50/x
3. Step 3: Cross multiply
   693,738x = 1,406,611.50 × 1,406,611.50
4. Step 4: Simplify right side
   693,738x = 1,978,555,911,932.25
5. Step 5: Solve for x
   x = 1,978,555,911,932.25/693,738
6. Step 6: Final answer
   x = 2,852,021.82