Finding the Third Proportional to 740,043 and 1,618,488

Step by Step Solution

1. Step 1: Write the proportion equation
   740,043 : 1,618,488 = 1,618,488 : x
2. Step 2: Convert to fraction form
   740,043/1,618,488 = 1,618,488/x
3. Step 3: Cross multiply
   740,043x = 1,618,488 × 1,618,488
4. Step 4: Simplify right side
   740,043x = 2,619,503,406,144
5. Step 5: Solve for x
   x = 2,619,503,406,144/740,043
6. Step 6: Final answer
   x = 3,539,663.78