Finding the Third Proportional to 346,137 and 751,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   346,137 : 751,321.50 = 751,321.50 : x
2. Step 2: Convert to fraction form
   346,137/751,321.50 = 751,321.50/x
3. Step 3: Cross multiply
   346,137x = 751,321.50 × 751,321.50
4. Step 4: Simplify right side
   346,137x = 564,483,996,362.25
5. Step 5: Solve for x
   x = 564,483,996,362.25/346,137
6. Step 6: Final answer
   x = 1,630,810.91