Finding the Third Proportional to 64,681.88 and 89,068.36

Step by Step Solution

1. Step 1: Write the proportion equation
   64,681.88 : 89,068.36 = 89,068.36 : x
2. Step 2: Convert to fraction form
   64,681.88/89,068.36 = 89,068.36/x
3. Step 3: Cross multiply
   64,681.88x = 89,068.36 × 89,068.36
4. Step 4: Simplify right side
   64,681.88x = 7,933,172,641.75
5. Step 5: Solve for x
   x = 7,933,172,641.75/64,681.88
6. Step 6: Final answer
   x = 122,649.08