Finding the Third Proportional to 34,387.50 and 72,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   34,387.50 : 72,913.50 = 72,913.50 : x
2. Step 2: Convert to fraction form
   34,387.50/72,913.50 = 72,913.50/x
3. Step 3: Cross multiply
   34,387.50x = 72,913.50 × 72,913.50
4. Step 4: Simplify right side
   34,387.50x = 5,316,378,482.25
5. Step 5: Solve for x
   x = 5,316,378,482.25/34,387.50
6. Step 6: Final answer
   x = 154,602.06