Finding the Third Proportional to 349,153 and 749,978

Step by Step Solution

1. Step 1: Write the proportion equation
   349,153 : 749,978 = 749,978 : x
2. Step 2: Convert to fraction form
   349,153/749,978 = 749,978/x
3. Step 3: Cross multiply
   349,153x = 749,978 × 749,978
4. Step 4: Simplify right side
   349,153x = 562,467,000,484
5. Step 5: Solve for x
   x = 562,467,000,484/349,153
6. Step 6: Final answer
   x = 1,610,947.06