Finding the Third Proportional to 64,925.25 and 142,594.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,925.25 : 142,594.50 = 142,594.50 : x
2. Step 2: Convert to fraction form
   64,925.25/142,594.50 = 142,594.50/x
3. Step 3: Cross multiply
   64,925.25x = 142,594.50 × 142,594.50
4. Step 4: Simplify right side
   64,925.25x = 20,333,191,430.25
5. Step 5: Solve for x
   x = 20,333,191,430.25/64,925.25
6. Step 6: Final answer
   x = 313,178.48