Finding the Third Proportional to 61,451.63 and 84,100.69

Step by Step Solution

1. Step 1: Write the proportion equation
   61,451.63 : 84,100.69 = 84,100.69 : x
2. Step 2: Convert to fraction form
   61,451.63/84,100.69 = 84,100.69/x
3. Step 3: Cross multiply
   61,451.63x = 84,100.69 × 84,100.69
4. Step 4: Simplify right side
   61,451.63x = 7,072,925,637.97
5. Step 5: Solve for x
   x = 7,072,925,637.97/61,451.63
6. Step 6: Final answer
   x = 115,097.45