Finding the Third Proportional to 27,490.50 and 42,877.13

Step by Step Solution

1. Step 1: Write the proportion equation
   27,490.50 : 42,877.13 = 42,877.13 : x
2. Step 2: Convert to fraction form
   27,490.50/42,877.13 = 42,877.13/x
3. Step 3: Cross multiply
   27,490.50x = 42,877.13 × 42,877.13
4. Step 4: Simplify right side
   27,490.50x = 1,838,447,848.27
5. Step 5: Solve for x
   x = 1,838,447,848.27/27,490.50
6. Step 6: Final answer
   x = 66,875.75