Finding the Third Proportional to 42,129 and 93,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,129 : 93,019.50 = 93,019.50 : x
2. Step 2: Convert to fraction form
   42,129/93,019.50 = 93,019.50/x
3. Step 3: Cross multiply
   42,129x = 93,019.50 × 93,019.50
4. Step 4: Simplify right side
   42,129x = 8,652,627,380.25
5. Step 5: Solve for x
   x = 8,652,627,380.25/42,129
6. Step 6: Final answer
   x = 205,384.11