Finding the Third Proportional to 61,607 and 89,038

Step by Step Solution

1. Step 1: Write the proportion equation
   61,607 : 89,038 = 89,038 : x
2. Step 2: Convert to fraction form
   61,607/89,038 = 89,038/x
3. Step 3: Cross multiply
   61,607x = 89,038 × 89,038
4. Step 4: Simplify right side
   61,607x = 7,927,765,444
5. Step 5: Solve for x
   x = 7,927,765,444/61,607
6. Step 6: Final answer
   x = 128,682.87