Finding the Third Proportional to 89,971,819,690 and 187,390,553,932

Step by Step Solution

1. Step 1: Write the proportion equation
   89,971,819,690 : 187,390,553,932 = 187,390,553,932 : x
2. Step 2: Convert to fraction form
   89,971,819,690/187,390,553,932 = 187,390,553,932/x
3. Step 3: Cross multiply
   89,971,819,690x = 187,390,553,932 × 187,390,553,932
4. Step 4: Simplify right side
   89,971,819,690x = 35,115,219,702,941,801,775,104
5. Step 5: Solve for x
   x = 35,115,219,702,941,801,775,104/89,971,819,690
6. Step 6: Final answer
   x = 390,291,313,701.69