Finding the Third Proportional to 740,208 and 1,590,558

Step by Step Solution

1. Step 1: Write the proportion equation
   740,208 : 1,590,558 = 1,590,558 : x
2. Step 2: Convert to fraction form
   740,208/1,590,558 = 1,590,558/x
3. Step 3: Cross multiply
   740,208x = 1,590,558 × 1,590,558
4. Step 4: Simplify right side
   740,208x = 2,529,874,751,364
5. Step 5: Solve for x
   x = 2,529,874,751,364/740,208
6. Step 6: Final answer
   x = 3,417,788.99