Finding the Third Proportional to 148,793.63 and 321,109.31

Step by Step Solution

1. Step 1: Write the proportion equation
   148,793.63 : 321,109.31 = 321,109.31 : x
2. Step 2: Convert to fraction form
   148,793.63/321,109.31 = 321,109.31/x
3. Step 3: Cross multiply
   148,793.63x = 321,109.31 × 321,109.31
4. Step 4: Simplify right side
   148,793.63x = 103,111,190,574.22
5. Step 5: Solve for x
   x = 103,111,190,574.22/148,793.63
6. Step 6: Final answer
   x = 692,981.24