Finding the Third Proportional to 19,702.50 and 42,807

Step by Step Solution

1. Step 1: Write the proportion equation
   19,702.50 : 42,807 = 42,807 : x
2. Step 2: Convert to fraction form
   19,702.50/42,807 = 42,807/x
3. Step 3: Cross multiply
   19,702.50x = 42,807 × 42,807
4. Step 4: Simplify right side
   19,702.50x = 1,832,439,249
5. Step 5: Solve for x
   x = 1,832,439,249/19,702.50
6. Step 6: Final answer
   x = 93,005.42