Finding the Third Proportional to 85,672,898.50 and 130,518,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,672,898.50 : 130,518,099.50 = 130,518,099.50 : x
2. Step 2: Convert to fraction form
   85,672,898.50/130,518,099.50 = 130,518,099.50/x
3. Step 3: Cross multiply
   85,672,898.50x = 130,518,099.50 × 130,518,099.50
4. Step 4: Simplify right side
   85,672,898.50x = 17,034,974,297,091,900
5. Step 5: Solve for x
   x = 17,034,974,297,091,900/85,672,898.50
6. Step 6: Final answer
   x = 198,837,375.59