Finding the Third Proportional to 139,934.25 and 306,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,934.25 : 306,112.50 = 306,112.50 : x
2. Step 2: Convert to fraction form
   139,934.25/306,112.50 = 306,112.50/x
3. Step 3: Cross multiply
   139,934.25x = 306,112.50 × 306,112.50
4. Step 4: Simplify right side
   139,934.25x = 93,704,862,656.25
5. Step 5: Solve for x
   x = 93,704,862,656.25/139,934.25
6. Step 6: Final answer
   x = 669,634.94