Finding the Third Proportional to 7,920,562.50 and 12,589,492.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,920,562.50 : 12,589,492.50 = 12,589,492.50 : x
2. Step 2: Convert to fraction form
   7,920,562.50/12,589,492.50 = 12,589,492.50/x
3. Step 3: Cross multiply
   7,920,562.50x = 12,589,492.50 × 12,589,492.50
4. Step 4: Simplify right side
   7,920,562.50x = 158,495,321,407,556.25
5. Step 5: Solve for x
   x = 158,495,321,407,556.25/7,920,562.50
6. Step 6: Final answer
   x = 20,010,614.32