Finding the Third Proportional to 58,308 and 90,038

Step by Step Solution

1. Step 1: Write the proportion equation
   58,308 : 90,038 = 90,038 : x
2. Step 2: Convert to fraction form
   58,308/90,038 = 90,038/x
3. Step 3: Cross multiply
   58,308x = 90,038 × 90,038
4. Step 4: Simplify right side
   58,308x = 8,106,841,444
5. Step 5: Solve for x
   x = 8,106,841,444/58,308
6. Step 6: Final answer
   x = 139,034.81