Finding the Third Proportional to 93,315 and 143,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   93,315 : 143,428.50 = 143,428.50 : x
2. Step 2: Convert to fraction form
   93,315/143,428.50 = 143,428.50/x
3. Step 3: Cross multiply
   93,315x = 143,428.50 × 143,428.50
4. Step 4: Simplify right side
   93,315x = 20,571,734,612.25
5. Step 5: Solve for x
   x = 20,571,734,612.25/93,315
6. Step 6: Final answer
   x = 220,454.75