Finding the Third Proportional to 58,072,662 and 89,139,258

Step by Step Solution

1. Step 1: Write the proportion equation
   58,072,662 : 89,139,258 = 89,139,258 : x
2. Step 2: Convert to fraction form
   58,072,662/89,139,258 = 89,139,258/x
3. Step 3: Cross multiply
   58,072,662x = 89,139,258 × 89,139,258
4. Step 4: Simplify right side
   58,072,662x = 7,945,807,316,790,564
5. Step 5: Solve for x
   x = 7,945,807,316,790,564/58,072,662
6. Step 6: Final answer
   x = 136,825,264.13