Finding the Third Proportional to 611,208 and 1,445,172

Step by Step Solution

1. Step 1: Write the proportion equation
   611,208 : 1,445,172 = 1,445,172 : x
2. Step 2: Convert to fraction form
   611,208/1,445,172 = 1,445,172/x
3. Step 3: Cross multiply
   611,208x = 1,445,172 × 1,445,172
4. Step 4: Simplify right side
   611,208x = 2,088,522,109,584
5. Step 5: Solve for x
   x = 2,088,522,109,584/611,208
6. Step 6: Final answer
   x = 3,417,039.88