Finding the Third Proportional to 56,236,631.91 and 74,620,009.69

Step by Step Solution

1. Step 1: Write the proportion equation
   56,236,631.91 : 74,620,009.69 = 74,620,009.69 : x
2. Step 2: Convert to fraction form
   56,236,631.91/74,620,009.69 = 74,620,009.69/x
3. Step 3: Cross multiply
   56,236,631.91x = 74,620,009.69 × 74,620,009.69
4. Step 4: Simplify right side
   56,236,631.91x = 5,568,145,845,762,594
5. Step 5: Solve for x
   x = 5,568,145,845,762,594/56,236,631.91
6. Step 6: Final answer
   x = 99,012,790.36