Finding the Third Proportional to 93,139 and 139,715

Step by Step Solution

1. Step 1: Write the proportion equation
   93,139 : 139,715 = 139,715 : x
2. Step 2: Convert to fraction form
   93,139/139,715 = 139,715/x
3. Step 3: Cross multiply
   93,139x = 139,715 × 139,715
4. Step 4: Simplify right side
   93,139x = 19,520,281,225
5. Step 5: Solve for x
   x = 19,520,281,225/93,139
6. Step 6: Final answer
   x = 209,582.25