Finding the Third Proportional to 69,393 and 148,624.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,393 : 148,624.50 = 148,624.50 : x
2. Step 2: Convert to fraction form
   69,393/148,624.50 = 148,624.50/x
3. Step 3: Cross multiply
   69,393x = 148,624.50 × 148,624.50
4. Step 4: Simplify right side
   69,393x = 22,089,242,000.25
5. Step 5: Solve for x
   x = 22,089,242,000.25/69,393
6. Step 6: Final answer
   x = 318,320.90