Finding the Third Proportional to 612,061.50 and 918,093

Step by Step Solution

1. Step 1: Write the proportion equation
   612,061.50 : 918,093 = 918,093 : x
2. Step 2: Convert to fraction form
   612,061.50/918,093 = 918,093/x
3. Step 3: Cross multiply
   612,061.50x = 918,093 × 918,093
4. Step 4: Simplify right side
   612,061.50x = 842,894,756,649
5. Step 5: Solve for x
   x = 842,894,756,649/612,061.50
6. Step 6: Final answer
   x = 1,377,140.63