Finding the Third Proportional to 89,971,820,326 and 187,390,555,302

Step by Step Solution

1. Step 1: Write the proportion equation
   89,971,820,326 : 187,390,555,302 = 187,390,555,302 : x
2. Step 2: Convert to fraction form
   89,971,820,326/187,390,555,302 = 187,390,555,302/x
3. Step 3: Cross multiply
   89,971,820,326x = 187,390,555,302 × 187,390,555,302
4. Step 4: Simplify right side
   89,971,820,326x = 35,115,220,216,391,921,565,696
5. Step 5: Solve for x
   x = 35,115,220,216,391,921,565,696/89,971,820,326
6. Step 6: Final answer
   x = 390,291,316,649.56