Finding the Third Proportional to 34,670.25 and 70,980.75

Step by Step Solution

1. Step 1: Write the proportion equation
   34,670.25 : 70,980.75 = 70,980.75 : x
2. Step 2: Convert to fraction form
   34,670.25/70,980.75 = 70,980.75/x
3. Step 3: Cross multiply
   34,670.25x = 70,980.75 × 70,980.75
4. Step 4: Simplify right side
   34,670.25x = 5,038,266,870.56
5. Step 5: Solve for x
   x = 5,038,266,870.56/34,670.25
6. Step 6: Final answer
   x = 145,319.60