Finding the Third Proportional to 42,907 and 65,637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,907 : 65,637.50 = 65,637.50 : x
2. Step 2: Convert to fraction form
   42,907/65,637.50 = 65,637.50/x
3. Step 3: Cross multiply
   42,907x = 65,637.50 × 65,637.50
4. Step 4: Simplify right side
   42,907x = 4,308,281,406.25
5. Step 5: Solve for x
   x = 4,308,281,406.25/42,907
6. Step 6: Final answer
   x = 100,409.76