Finding the Third Proportional to 19,781,752 and 42,176,402

Step by Step Solution

1. Step 1: Write the proportion equation
   19,781,752 : 42,176,402 = 42,176,402 : x
2. Step 2: Convert to fraction form
   19,781,752/42,176,402 = 42,176,402/x
3. Step 3: Cross multiply
   19,781,752x = 42,176,402 × 42,176,402
4. Step 4: Simplify right side
   19,781,752x = 1,778,848,885,665,604
5. Step 5: Solve for x
   x = 1,778,848,885,665,604/19,781,752
6. Step 6: Final answer
   x = 89,923,727.97