Finding the Third Proportional to 56,705 and 132,446.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,705 : 132,446.50 = 132,446.50 : x
2. Step 2: Convert to fraction form
   56,705/132,446.50 = 132,446.50/x
3. Step 3: Cross multiply
   56,705x = 132,446.50 × 132,446.50
4. Step 4: Simplify right side
   56,705x = 17,542,075,362.25
5. Step 5: Solve for x
   x = 17,542,075,362.25/56,705
6. Step 6: Final answer
   x = 309,356.77