Finding the Third Proportional to 58,503 and 138,056.25

Step by Step Solution

1. Step 1: Write the proportion equation
   58,503 : 138,056.25 = 138,056.25 : x
2. Step 2: Convert to fraction form
   58,503/138,056.25 = 138,056.25/x
3. Step 3: Cross multiply
   58,503x = 138,056.25 × 138,056.25
4. Step 4: Simplify right side
   58,503x = 19,059,528,164.06
5. Step 5: Solve for x
   x = 19,059,528,164.06/58,503
6. Step 6: Final answer
   x = 325,787.19