Finding the Third Proportional to 312,053.50 and 456,973

Step by Step Solution

1. Step 1: Write the proportion equation
   312,053.50 : 456,973 = 456,973 : x
2. Step 2: Convert to fraction form
   312,053.50/456,973 = 456,973/x
3. Step 3: Cross multiply
   312,053.50x = 456,973 × 456,973
4. Step 4: Simplify right side
   312,053.50x = 208,824,322,729
5. Step 5: Solve for x
   x = 208,824,322,729/312,053.50
6. Step 6: Final answer
   x = 669,193.98