Finding the Third Proportional to 89,730 and 130,699.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,730 : 130,699.50 = 130,699.50 : x
2. Step 2: Convert to fraction form
   89,730/130,699.50 = 130,699.50/x
3. Step 3: Cross multiply
   89,730x = 130,699.50 × 130,699.50
4. Step 4: Simplify right side
   89,730x = 17,082,359,300.25
5. Step 5: Solve for x
   x = 17,082,359,300.25/89,730
6. Step 6: Final answer
   x = 190,375.12