Finding the Third Proportional to 42,399 and 62,302.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,399 : 62,302.50 = 62,302.50 : x
2. Step 2: Convert to fraction form
   42,399/62,302.50 = 62,302.50/x
3. Step 3: Cross multiply
   42,399x = 62,302.50 × 62,302.50
4. Step 4: Simplify right side
   42,399x = 3,881,601,506.25
5. Step 5: Solve for x
   x = 3,881,601,506.25/42,399
6. Step 6: Final answer
   x = 91,549.36