Finding the Third Proportional to 373,989 and 770,032.50

Step by Step Solution

1. Step 1: Write the proportion equation
   373,989 : 770,032.50 = 770,032.50 : x
2. Step 2: Convert to fraction form
   373,989/770,032.50 = 770,032.50/x
3. Step 3: Cross multiply
   373,989x = 770,032.50 × 770,032.50
4. Step 4: Simplify right side
   373,989x = 592,950,051,056.25
5. Step 5: Solve for x
   x = 592,950,051,056.25/373,989
6. Step 6: Final answer
   x = 1,585,474.58