Finding the Third Proportional to 56,349,067.50 and 84,967,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,349,067.50 : 84,967,042.50 = 84,967,042.50 : x
2. Step 2: Convert to fraction form
   56,349,067.50/84,967,042.50 = 84,967,042.50/x
3. Step 3: Cross multiply
   56,349,067.50x = 84,967,042.50 × 84,967,042.50
4. Step 4: Simplify right side
   56,349,067.50x = 7,219,398,311,196,806
5. Step 5: Solve for x
   x = 7,219,398,311,196,806/56,349,067.50
6. Step 6: Final answer
   x = 128,119,215.30