Finding the Third Proportional to 42,912 and 88,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,912 : 88,807.50 = 88,807.50 : x
2. Step 2: Convert to fraction form
   42,912/88,807.50 = 88,807.50/x
3. Step 3: Cross multiply
   42,912x = 88,807.50 × 88,807.50
4. Step 4: Simplify right side
   42,912x = 7,886,772,056.25
5. Step 5: Solve for x
   x = 7,886,772,056.25/42,912
6. Step 6: Final answer
   x = 183,789.43