Finding the Third Proportional to 647,608.50 and 1,374,138

Step by Step Solution

1. Step 1: Write the proportion equation
   647,608.50 : 1,374,138 = 1,374,138 : x
2. Step 2: Convert to fraction form
   647,608.50/1,374,138 = 1,374,138/x
3. Step 3: Cross multiply
   647,608.50x = 1,374,138 × 1,374,138
4. Step 4: Simplify right side
   647,608.50x = 1,888,255,243,044
5. Step 5: Solve for x
   x = 1,888,255,243,044/647,608.50
6. Step 6: Final answer
   x = 2,915,735.73