Finding the Third Proportional to 377,991 and 529,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   377,991 : 529,150.50 = 529,150.50 : x
2. Step 2: Convert to fraction form
   377,991/529,150.50 = 529,150.50/x
3. Step 3: Cross multiply
   377,991x = 529,150.50 × 529,150.50
4. Step 4: Simplify right side
   377,991x = 280,000,251,650.25
5. Step 5: Solve for x
   x = 280,000,251,650.25/377,991
6. Step 6: Final answer
   x = 740,759.04