Finding the Third Proportional to 7,140,736.50 and 10,878,426

Step by Step Solution

1. Step 1: Write the proportion equation
   7,140,736.50 : 10,878,426 = 10,878,426 : x
2. Step 2: Convert to fraction form
   7,140,736.50/10,878,426 = 10,878,426/x
3. Step 3: Cross multiply
   7,140,736.50x = 10,878,426 × 10,878,426
4. Step 4: Simplify right side
   7,140,736.50x = 118,340,152,237,476
5. Step 5: Solve for x
   x = 118,340,152,237,476/7,140,736.50
6. Step 6: Final answer
   x = 16,572,541.54